Specification:(10w) Model Type: High Power Integrated Chip lamp Beads Integrated approach: 3 Series 3 Paralleling Forward Voltage: 9-12V(if use DC 12,Recommended Series a about 1.50 ohm resistor to use) Forward current: 900mA Luminous Flux: 90-120LM/W Color-rendering index: 60-85 Beam Angle: 120 degrees Working Temperature: -20 centigrade to 60 centigrade Color Temperature: Warm White: 3000-3200K, White: 6000-6500K Life Span: 100,000 Hours Specification:(20w/30w/50w/70w/100w) Model Type: High Power Integrated Chip lamp Beads Forward Voltage: 30-36V Forward current: 20w(600mA) 30w(900mA) 50w(1500mA) 70w(2100mA) 100w(3000mA) Luminous Flux: 90-120LM/W Color-rendering index: 60-85 Beam Angle: 120 degrees Working Temperature: -20 centigrade to 60 centigrade Color Temperature: Warm White: 3000-3200K, White: 6000-6500K Life Span: 100,000 Hours Applications: Widely used in Traffic lighting, Landscape lighting, advertising lighting, Indoor Lighting, Special lighting,Landscape scene / spot lighting,Architectural lighting,Display scene,Artwork lighting,general lighting,Amusement park scene,Aquarium lighting and so on