SPE/PEM technology electrolysis cell, use world advanced Proton Exchange Membrane technology, only use little electricity and pure water, to produce pure hydrogen gas. No need to add KOH. We mainly produce five types now, round shape cell have: SPE-90 small cell with H2 flow 0--90ml/min, SPE-300: H2 flow 0--300ml/min and SPE-600:0--600ml/min. SPE-1200plus round type and SPE-2000plus round cell. Square shape cell have: SPE-600plus: 0--600ml/min, SPE-1200plus: 0--1200ml/min and SPE-2000plus with H2 flow 0--2000ml/min. It is widely be used in Hydrogen generator, people breath and rich hydrogen water to drink etc. Model SPE-90 SPE-300 SPE-600 H2 Flow Rate(ml/min) 0--90 0--300 0--600 Technology SPE/PEM(Proton Exchange Membrane) Catalyst Coating Technology Chemical Precipitation Method (one membrane need two days to produce, catalyst will permeate into membrane, catalyst no fall off) Electrode Plate 100% Titanium 1 Metal(Anode 2mm thickness) Water Requirement Ultra pure water, electric resistivity>2megohom.cm Water is recycle used. No need pump Cell Outside Diameter 80mm 136mmï¼?round shapeï¼? Inside Active Membrane Diameter 70mm 100mm(round shape) Cell withstand pressure 4bar 10bar Input Current 0--13A constant current 0--43A, constant current ( proper set at 0--30A to protect cell) Input Voltage 3V V 5V 3V V 12V 6V V 16V N.W 0.4kg/pcs 1.6kgs/pcs 2.3kgs/pcs