Specifications: Model: UST-MR16-3*2W/UST-GU10-3*2W/ UST-E27-3*2W Base: E14/E17/E26/E27/GU10 Beam angle: CREE-15/30/45/60 degrees ED-8/15/30/45/60/100 degrees Lumen: 240-400LM LED brand: Cree/Edison/etc Material: Pure aluminum Size:MR16-¦µ50*51mm GU10-¦µ50*60.3mm E27-¦µ50*74mm Color temperature: Warm white (2700-3700K), Neutral white (3700-5000K), Cool white (5000-6500K) Input voltage: MR16-AC/DC12V GU10/E27-AC110-240V Working temperature: -20 to 40¡ãC Working humidity: 10 to 95% RH Waterproof grade: IP40 Life span: more than 50,000 hours No UV or IR radiation CE&ROHS Two years guarantee. Features: 1. Pure aluminum body for better heat release +High transmittance PMA lens 2. Famous brand led(CREE, SSC, Edison, Bridgelux, etc) 3. Proprietary design for excellent thermal management and lumen maintenance 4. Fire-proof lamp holder and other raw materials 5. High quality raw materials, Such as rubycon capacitor, Iwatt IC, etc. Applications: 1. Home and office lighting(museums, art galleries, home, hotel, hospital, cabinet, bar, office, and meeting room, ETC) 2. Commercial lighting( Shopping mall, closet, ceiling, convenient store, ETC) 3. Cabinet and under counter lighting 4. display case lighting 5. Art lighting 6. Boat lighting, accent lighting. Carton box with standard export packing.