4 Path Video 1 Path Data Optical Transmitter Suppliers and Manufacturers

Specifications 1.odorless 2.low VOC 3.antimicrobial 4. mildew resistant 5.environmentally friendly 6.waterproof 7.Scrub resistance Description It is an enhanced mildew proof product adopting nano-scale Ag+ antimicrobial and mildew proof technology, integrating odorless formula, with fresh product smell, smooth paint film, durable and beautiful paint.As an affordable and environmentally friendly product with excellent decorative performance, it is characterized by fresh smell, environmental health, strong covering power, large painting area, convenient constructionapplication, short constructionapplication period, etc. Specification Data Solvent: Water Pigment: Non-lead pigment Theoretical Solids By Volume: more than 50% Theoretical Coverage: Theoretically 1 litre of this product covers 12 sqm in 1 coat Coverage varies considerably depending on application methods and surface roughness and porosity. Shelf Life: Minimum 12 months at 77F(25C) unopened and store in cool and dry places. Recommended Film Thickness: Wet: 80 micron Dry: 30 micron Dry Time: At 77F (25C) and 50% R.H. to recoat Touch Dry: 1 hours Recoat : 2-3 hours Application: Brush, Roll, conventional spray or Airless Spray. Thinner: Thin up 15% depend on different application methods & temperature. Do not over thin by adding more than 30% water. Brush or Roller: For sealing new or bare surfaces thin with up to 1 part of clean water to 5-10 parts of paint(10%-20%) Conventional Spray: Add up to 1 part clean water to 5 parts paint(20%) Airless spray: do not thin Clean-up: Clean up equipment with water Typical painting system Substrate System All kinds of Wall surfaces 1.Alkali Resistance Primer (1 coat) 2.Emulsion Wall Paint (2 coats)

Properties 1. Excellent transparency, outstanding resistance to aging. 2. It has good insulating properties and mechanical strength; to acid, alkali, salt has a strong resistance to corrosion; and because easy processing. Applications 1.Extruded sheets for signage, displays and building material 2.Motive parts such as tail lamps, meter covers and sun visors 3.General sundries such as tableware, kitchenware, giftware and bathroom accessories 4.Optical lenses such as sunglasses, reading glasses and camera lenses 5.Light guide panels for LCD displays 6.Other applications such as mobile phone display panels, clock covers, lighting covers/accessories, optical fibres, toys, etc.

DATA SHEET FOR EPOXY EPOXY COATING :- INTRODUCTION - EPOXY COATING (HYB) is a two part high solids solvent free epoxy phenolic resin based coating system designed for hard wearing, smooth surface finish for floors, walls and on steel structures. Nonskid surface finish can be achieved on floor, if required. FEATURES: 1) Hard Wearing 2) Non Dusting 3) Excellent Surface Finish 4) Non Smelling 5) Good Aesthetics 6) Highly Chemical Resistant APPLICATION: 1.Stir well before mixing Part A and Part B and mix in the prescribed ratio. 2.Apply one coat of EPOXY primer on the clean and dry surface. 3.EPOXY COATING (HYB) should be applied on the surface by brush or roller within 24 hrs. After application of primer coat it should be allowed to air dry for min. 4 hrs. Preferable in a dust free atmosphere. 4.Apply min. 2 coats with the intercoat interval of 6-8 hrs. PRODUCT SPECIFICATIONS: Application - Brush, Roller Mixing Ratio - As Directed on Packing Port Life - 30 Mins. Drying Time - Touch Dry- 30 Min, Hard Dry 6 Hrs. - Intercoat Interval 6-8 Hrs. Min. - Dry Film Thickness 125-150 Microns/per coat - depending on porosity Covering Capacity - 6-8 sq.met/kg per coat depending on porosity, roughness & method of application. Color Shades - All Standard Shades RECOMMENDED USES: 1) Food & Pharmaceutical 2) Work Shop 3) Clean Room Application 4) Chemical Resistant Coating for Concrete& Steel 5) Petrochemical, Fertilizer plants METHOD OF APPLICATION: SURFACE PREPARATION The long-term durability of the applied Epoxy coating (HYB) epoxy coating is dependent on the adhesion between sub-base and coating material. It is most important therefore, that the substrate surfaces are correctly prepared prior to application. 1.Before application of the Epoxy coating (HYB) surface should be free from loose partials, rust, oils, grease or earlier coatings and should be totally dry. 2.New concrete or cementations surface should be placed at least 28 days and have a moisture content of less than 5% before application of Epoxy coating (HYB) 3.After surface is dry, all repair work like sealing of joints, cracks filling of cavities and crevices should be carried out. HEALTH & SAFETY - Keep the containers tightly closed when not in use. Avoid contact with skin & eyes. It comes in contact with the body, wash affected parts with plenty of water and contact a doctor. Other known sector for Epoxy floor lining, Epoxy garage floor lining, Concrete epoxy lining, Concrete floor epoxy lining, Epoxy pipe lining, Marine epoxy lining, Sub marine epoxy lining, Basement lining epoxy floor shield, Louisiana, Oregon, Chip lining color epoxy floor, Aviation lining epoxy interior.

APPLICATION OF SK-HB K-SILICATE MORTAR : * K-SILICATE is used for jointing Acid Resisting brick in construction of vessels in suited for construction of fume chambers and stacks handling hot, dry Acid fumes and vapors. It is also used for jointing chemical resisting stoneware pipes. K-SILICATE cement is good bedding material for Acid â?? Resisting bricks and tiles. The concrete surface needed protection should be dryed, clean and rough. The bricks or tiles will be set with K-SILICATE cement over concrete surface applied with a suitable an impermeable interliner. When Bedding and Jointing Materials are the same. On the treated surface bricks or tiles are bedded to a thickness of about 6 mm and tamp gently with a wooden piece till the paste squeezes out of joints. The paste that is squeezed out of the joint should be removed by trowel with good finishing. After the mortar of the joint is dryed treat the joints with 20% Hydrochloric Acid Solution by means of brush. A.R.lining should be always in contact with Acid and not with water. Concrete subtract like Floor, Wall, tanks and similar surface should be protected with a membrane of Bitrok Mastic or compound steel tanks should be protected with rubber or PVC subjected to chemical conditions and temperature of chemical media. The Brick lining is recommended over the protective layer of Bitrok Mastic. When Bedding and Jointing Materials are Different. Spread the silicate type mortar about 6 to 8 mm thick on the back of the tile or brick. Press the tile on the bed leaving required space for joints between tiles for bricks. After the bedding mortar is set, fill Mp the joints with specified cement.PRODUCT DATA SHEET FOR SK-HB ( K-SILICATE) MORTAR A general purpose cement for acid conditions Resistant to High & medium concentrations of most of the common organic and inorganic acids except Hydroflouric acid. Recommended where the concentration of the acid is high suitable for high temperature. Unsuited to aqueous solutions, alkaline conditions. PREPARATIONS OF MORTAR : * Measure 1 part by weight of K-SILICATE solution into a suitable mixing pan. * Add slowly and gradually 3 parts by weight K-SILICATE mortar and mix thoroughly to form a smooth mortar. * In hot season very large batches of mortar will become stiff quite rapidly therefore small batches, not exceeding 4 to 8 kgs. Will be prepared. * The cement mortar will be used before it starts setting.

Properties 1. Excellent transparency, outstanding resistance to aging. 2. It has good insulating properties and mechanical strength; to acid, alkali, salt has a strong resistance to corrosion; and because easy processing. Applications 1.Extruded sheets for signage, displays and building material 2.Motive parts such as tail lamps, meter covers and sun visors 3.General sundries such as tableware, kitchenware, giftware and bathroom accessories 4.Optical lenses such as sunglasses, reading glasses and camera lenses 5.Light guide panels for LCD displays 6.Other applications such as mobile phone display panels, clock covers, lighting covers/accessories, optical fibres, toys, etc.

Properties 1. Excellent transparency, outstanding resistance to aging. 2. It has good insulating properties and mechanical strength; to acid, alkali, salt has a strong resistance to corrosion; and because easy processing. Applications 1.Extruded sheets for signage, displays and building material 2.Motive parts such as tail lamps, meter covers and sun visors 3.General sundries such as tableware, kitchenware, giftware and bathroom accessories 4.Optical lenses such as sunglasses, reading glasses and camera lenses 5.Light guide panels for LCD displays 6.Other applications such as mobile phone display panels, clock covers, lighting covers/accessories, optical fibres, toys, etc.

Properties 1. Excellent transparency, outstanding resistance to aging. 2. It has good insulating properties and mechanical strength; to acid, alkali, salt has a strong resistance to corrosion; and because easy processing. Applications 1.Extruded sheets for signage, displays and building material 2.Motive parts such as tail lamps, meter covers and sun visors 3.General sundries such as tableware, kitchenware, giftware and bathroom accessories 4.Optical lenses such as sunglasses, reading glasses and camera lenses 5.Light guide panels for LCD displays 6.Other applications such as mobile phone display panels, clock covers, lighting covers/accessories, optical fibres, toys, etc.

PRODUCT INFO Yellow Sesbania Flowers (Dok Sanoh) are small oval blooms, averaging 2 to 8 centimeters in length, and have a curved, broad, and flat shape. The flowers appear in groupings of 2 to 8 blooms on the end of slender green stems and are nestled between branches of straight, smooth, and oval pinnate leaves ranging 1 to 2 centimeters in length. These leaves fold in on each other, closing at night, and reopen when the run rises following the sunâ??s path throughout the day. The flower petals are bright yellow and have a delicate, velvety, and soft texture. Sesbania flowers have a slight crunch and a succulent, tender quality when consumed raw, releasing a mild, sweet, and subtly green flavoring. Some consumers note their similarity in taste to a sweet pea. When cooked, the flowers soften and take on the other flavors in the dish, contributing added texture and a faint floral taste. USES Yellow Sesbania Flowers (Dok Sanoh) are a source of fiber to stimulate the digestive tract, antioxidants to guard the cells against free radical damage, and calcium and phosphorus to protect bones and teeth. The flowers also provide some iron to develop the protein hemoglobin for oxygen transport through the bloodstream and lower amounts of vitamins A and C, magnesium, and B vitamins. In India, Sesbania flowers and leaves are used in poultices. They are customarily used to soothe internal ailments and are said to have inflammatory and antibacterial properties. Season Sesbania flowers are available year-round.

DL-Methionine, CAS No.59-51-8, is a essential amino acid manufactured by chemical synthesis. L-methionine is manufactured by optical resolution of the DL-Methionine. Function and uses: used in hepatic therapeutics and drugs for preventing hepatic impairments. L-methionine is used as a nutritive supplement in infant milk preparations, health foods and as a component of sports supplements. As an experienced DL-Methionine manufacturer and supplier, we has been supplying and exporting DL-Methionine for almost 10 years, please be assured to buy from us. Any inquiries about price and the market trend please feel free to contact us, we will reply you within 1 working day. DL-Methionine Food Feed grade Specification ITEM STANDARD Appearance White Crystalline Powder Assay (on dry matter) % 98.5-101.5 Clarity of Solution Clear, colorless Transmittance % 98.0 PH Value(1g/100ml in water) 5.4-6.1 Chloride(As Cl) % 0.05 Heavy Metals(As Pb) % 0.002 Lead (As Pb) % 0.001 Arsenic (As AS) % 0.00015 Sulfate(SO4) % 0.02 Ammonium( As NH4) % 0.01 Loss on drying % 0.5 Residue on ignition(as sulphate ash) % 0.1 Organic Volatile Impurities Meets the requirement

Product Description Categories Sweeteners Qty in 20 FCL 9000kg, 11250kg Min Order 500kg Origin China Packaging Factory Packaging or Neutral Certificate ISO, Kosher, Halal, BRC E No. E951 CAS No. 22839-47-0 HS Code 292429 Specification FCC/USP Aspartame is an artificial sweetener, like Acesulfame Potassium, Sucralose, Sodium Saccharin, Sodium Cyclamate and Neotame. It is widely in daily food products to replace sugar. There are too many types of Aspartame in the market, generally are powder 100mesh, Granular 20-60mesh, Fine Granular 60-100mesh, HDP 100-200mesh and Super Fine Powder 300mesh. Weâ??re China Aspartame supplier not only sell Aspartame but also provide manufacturers analysis, market price trends, free samples and also other food additives for mix combined. Aspartame Powder 100mesh Specification Test Item Specification Appearance White Powder Odor/Taste Conforms to Quality Standards Identification Meets Requirements Assay (on dry basis) 98.0% to 102% Loss on Drying 4.5% Residue on Ignition / Sulphated Ash < 0.2% Optical (Specific) Rotation +14.5 and +16.5 Conductivity 30 Scm-1 Transmittance 95% Extraneous Matter Free from material foreign to product pH (0.8% Solution) 4.5 ~6.0 Heavy Metal (as Pb) 10 ppm Lead < 1 ppm Arsenic < 3 ppm Residual Solvents Meets Requirements 5-benzyl-3,6-dioxo-2 Piperazineacetic Acid (DKP) 1.5% Other Related Substances 2.0% USP/NF; 1.5% EP L-phenylalanine 0.5% Solubility Completely Dissolves Particle Size NMT 5% on 100 mesh Bulk Density 0.3 +/- 0.1 g/mL Total Aerobic Plate Count 250 CFU/g Yeast and Mold Count 100 CFU/g Coliforms 3.0 MPN/g Escherichia Coli Negative/g Salmonella Negative/25g

L-Cysteine, E920, CAS No.52-90-4, a non-essential amino acid manufactured through fermentation. Cysteine is extracted from raw materials of animal and human origins. Cysteine has the same structure as serine, but with one of its oxygen atoms replaced by sulfur. As an experienced L-Cysteine manufacturer and supplier, we has been supplying and exporting L-Cysteine for almost 10 years, please be assured to buy from us. Any inquiries about price and the market trend please feel free to contact us, we will reply you within 1 working day. Categories Amino Acids Qty in 20â??FCL 12000kg Min Order 500kg Origin China Packaging Factory Packaging or Neutral Certificate ISO, Kosher, Halal, BRC E No. E920 CAS No. 52-90-4 HS Code 293090 Specification FCC/USP L-Cysteine Specification Item Specifications (AJI97 ) Appearance White crystal or crystalline powder; tasteless Assay, % 98.5~101.0 Specific rotation -218~ -224 Loss on drying, % 0.2 Transmittance, % 98.0 Chloride (as Cl), % 0.02 Sulfate (as SO4), % 0.02 Ammonium as (as NH4), % 0.02 Iron (as Fe), % .001 Heavy Metals (as Pb), % 0.001 Arsenic (as As), % 0.0001 pH Value 5.0~6.5 Residue on ignition, % 0.1 Other amino acid Conforms

L-Tyrosine powder, CAS No.60-18-4, non-essential amino acid manufactured by extraction from vegetable protein. Do not use materials of animal origin in L-Tyrosine manufacturing process. L-tyrosine is an important factor in regulating mood. L-tyrosine deficiency can lead to poor mood, low blood pressure and low body temperature and associates with Restless Leg Syndrome. Tyrosine can be used in sports nutrition drink, skin care cosmetics and health foods. As an experienced L-Tyrosine manufacturer and supplier, we has been supplying and exporting L-Tyrosine for almost 10 years, please be assured to buy from us. Any inquiries about price and the market trend please feel free to contact us, we will reply you within 1 working day. L-Tyrosine Food grade Specification Name L-Tyrosine Chemical Formula C9H11NO3 Appearance Cristal blanco o polvo cristalino Assay 99.0 100.5% Transmittance Clear, colorless, 95% min Loss on drying 0.20% max Residue on ignition 0.10% max Other ammoniated Meet with the requirements Chloride 0.020% max Sulfate 0.020% max Ammonium 0.020% max PH 5.0 â?? 6.5 Specific rotation -11.3 -12.1 Heavy metals 0.0010% max Arsenic 0.0001% max Iron(Fe) 0.0010% max

Peppermint Oil, CAS No.8006-90-4, food aromas, an essential oil manufactured through extraction from peppermint, Slightly Yellow Clear Liquid. Peppermint Oil is widely used as aromas & perfumes. It can be used to add a peppermint flavor to baked goods, desserts, and candy, particularly candy canes, mints, and peppermint patties. As an experienced Peppermint Oil manufacturer and supplier, we has been supplying and exporting Peppermint Oil for almost 10 years, please be assured to buy from us. Any inquiries about price and the market trend please feel free to contact us, we will reply you within 1 working day. Peppermint Oil Liquid food grade Specification ITEM STANDARD Appearance Slightly Yellow Clear Liquid Odor Characteristic Odor Of Menthol Arvensis Peppermint Oil Optical rotation(20 ) -28 16 Specific Gravity(20/20 ) 0.888-0.908 Refractive Index (20 ) 1.456-1.466 Solubility(20 ) 1 Volume Soluble In 3.5 Volumes Of 70% (V/V) Alcohol, Forming A Clear Solution Total Menthol % 50 L-Menthol (By GC) % 28-40 Acid Value % 1.5

Technical Features: 1, The core components are all imported, adopting the sixth generation IPM module from Mitsubishi, which has stable performance, long service life, strong protection functions and convenient replacement and maintenance. 2, Adopt the central processor DSP28335 chip from American TI Company, respond quickly and accurately, and provide stable and clean power for the load to provide protection. 3, The whole machine adopts modular design and plug-in design, which is convenient for maintenance and reduces the hidden cost of machine failure to repair. 4, According to the product configuration conditions, adjustment the system usage mode: DC(Battery/Solar) priority or AC mains bypass priority can be set. 5, Two kinds of start mode: Reduction Voltage Start and Variable Frequency Start. Customers can set start mode according to the type of their load. This function is very convenient for users and also reduce frequency converter's usage, which reduced the cost of equipment investment, easy to connect wires and control. 6, The output voltage can be set between -40 % to +20 % of rated voltage. And the output voltage is very accuracy ±1%. 7, The DC input voltage range can be set. Over-voltage point, under-voltage point, over-voltage recovery point, under-voltage recovery point all can be setting via the LCD panel. 8, Output AC Power is suitable for all types of electrical equipment, CNC machines, electric tools, motors, pump and air conditioner etc. It has higher efficiency and higher capability of driving load. 9, Humanized safety design, using isolation transformer design, input and output are completely electrically isolated, input and output are equipped with circuit breakers, which saving costs for the user and easy to installation, the electric parts are completely closed to prevent electric shock. 10, Wide input voltage can be set according to customerâ??s requirement. Input voltage range can be selected from 100-300V, 200-500V or 500-850V, suitable for solar/wind system without backup batteries, it can save many cost and maximization use the solar/wind energy. 11, Using SVPWM space vector algorithms, high conversion efficiency, high instantaneous power and low losses conversion efficiency up to 94%. 12, Powerful data display function. LCD + LED display, can display input and output voltage, current, KWH, fault display, convenient for customers to quickly find faults and guide maintenance. 13, European CE (EMC, LVD, UL1741) and ISO9001 certificates. [Optional] RS485 communication; AC bypass complementary function; Built-in charger

1, The core components are all imported, adopting the sixth generation IPM module from Mitsubishi, which has stable performance, long service life, strong protection functions and convenient replacement and maintenance. 2, Adopt the central processor DSP28335 chip from American TI Company, respond quickly and accurately, and provide stable and clean power for the load to provide protection. 3, The whole machine adopts modular design and plug-in design, which is convenient for maintenance and reduces the hidden cost of machine failure to repair. 4, According to the product configuration conditions, adjustment the system usage mode: DC(Battery/Solar) priority or AC mains bypass priority can be set. 5, Two kinds of start mode: Reduction Voltage Start and Variable Frequency Start. Customers can set start mode according to the type of their load. This function is very convenient for users and also reduce frequency converter's usage, which reduced the cost of equipment investment, easy to connect wires and control. 6, The output voltage can be set between -40 % to +20 % of rated voltage. And the output voltage is very accuracy �±1%. 7, The DC input voltage range can be set. Over-voltage point, under-voltage point, over-voltage recovery point, under-voltage recovery point all can be setting via the LCD panel. 8, Output AC Power is suitable for all types of electrical equipment, CNC machines, electric tools, motors, pump and air conditioner etc. It has higher efficiency and higher capability of driving load. 9, Humanized safety design, using isolation transformer design, input and output are completely electrically isolated, input and output are equipped with circuit breakers, which saving costs for the user and easy to installation, the electric parts are completely closed to prevent electric shock. 10, Wide input voltage can be set according to customerâ??s requirement. Input voltage range can be selected from 100-300V, 200-500V or 500-850V, suitable for solar/wind system without backup batteries, it can save many cost and maximization use the solar/wind energy. 11, Using SVPWM space vector algorithms, high conversion efficiency, high instantaneous power and low losses conversion efficiency up to 94%. 12, Powerful data display function. LCD + LED display, can display input and output voltage, current, KWH, fault display, convenient for customers to quickly find faults and guide maintenance. 13, European CE (EMC, LVD, UL1741) and ISO9001 certificates. [Optional] A, RS485 communication; B, AC bypass complementary function; C, Built-in charger

1, The core components are all imported, adopting the sixth generation IPM module from Mitsubishi, which has stable performance, long service life, strong protection functions and convenient replacement and maintenance. 2, Adopt the central processor DSP28335 chip from American TI Company, respond quickly and accurately, and provide stable and clean power for the load to provide protection. 3, The whole machine adopts modular design and plug-in design, which is convenient for maintenance and reduces the hidden cost of machine failure to repair. 4, According to the product configuration conditions, adjustment the system usage mode: DC(Battery/Solar) priority or AC mains bypass priority can be set. 5, Two kinds of start mode: Reduction Voltage Start and Variable Frequency Start. Customers can set start mode according to the type of their load. This function is very convenient for users and also reduce frequency converterâ??s usage, which reduced the cost of equipment investment, easy to connect wires and control. 6, The output voltage can be set between -40 % to +20 % of rated voltage. And the output voltage is very accuracy �±1%. 7, The DC input voltage range can be set. Over-voltage point, under-voltage point, over-voltage recovery point, under-voltage recovery point all can be setting via the LCD panel. 8, Output AC Power is suitable for all types of electrical equipment, CNC machines, electric tools, motors, pump and air conditioner etc. It has higher efficiency and higher capability of driving load. 9, Humanized safety design, using isolation transformer design, input and output are completely electrically isolated, input and output are equipped with circuit breakers, which saving costs for the user and easy to installation, the electric parts are completely closed to prevent electric shock. 10, Wide input voltage can be set according to customerâ??s requirement. Input voltage range can be selected from 100-300V, 200-500V or 500-850V, suitable for solar/wind system without backup batteries, it can save many cost and maximization use the solar/wind energy. 11, Using SVPWM space vector algorithms, high conversion efficiency, high instantaneous power and low losses conversion efficiency up to 94%. 12, Powerful data display function. LCD + LED display, can display input and output voltage, current, KWH, fault display, convenient for customers to quickly find faults and guide maintenance. 13, European CE (EMC, LVD, UL1741) and ISO9001 certificates.

1, The core components are all imported, adopting the sixth generation IPM module from Mitsubishi, which has stable performance, long service life, strong protection functions and convenient replacement and maintenance. 2, Adopt the central processor DSP28335 chip from American TI Company, respond quickly and accurately, and provide stable and clean power for the load to provide protection. 3, The whole machine adopts modular design and plug-in design, which is convenient for maintenance and reduces the hidden cost of machine failure to repair. 4, According to the product configuration conditions, adjustment the system usage mode: DC(Battery/Solar) priority or AC mains bypass priority can be set. 5, Two kinds of start mode: Reduction Voltage Start and Variable Frequency Start. Customers can set start mode according to the type of their load. This function is very convenient for users and also reduce frequency converter�¢??s usage, which reduced the cost of equipment investment, easy to connect wires and control. 6, The output voltage can be set between -40 % to +20 % of rated voltage. And the output voltage is very accuracy �?�±1%. 7, The DC input voltage range can be set. Over-voltage point, under-voltage point, over-voltage recovery point, under-voltage recovery point all can be setting via the LCD panel. 8, Output AC Power is suitable for all types of electrical equipment, CNC machines, electric tools, motors, pump and air conditioner etc. It has higher efficiency and higher capability of driving load. 9, Humanized safety design, using isolation transformer design, input and output are completely electrically isolated, input and output are equipped with circuit breakers, which saving costs for the user and easy to installation, the electric parts are completely closed to prevent electric shock. 10, Wide input voltage can be set according to customer�¢??s requirement. Input voltage range can be selected from 100-300V, 200-500V or 500-850V, suitable for solar/wind system without backup batteries, it can save many cost and maximization use the solar/wind energy. 11, Using SVPWM space vector algorithms, high conversion efficiency, high instantaneous power and low losses conversion efficiency up to 94%. 12, Powerful data display function. LCD + LED display, can display input and output voltage, current, KWH, fault display, convenient for customers to quickly find faults and guide maintenance. 13, European CE (EMC, LVD, UL1741) and ISO9001 certificates. [Optional] A, RS485 communication; B, AC bypass complementary function; C, Built-in charger