Specification:(10w)Model Type: High Power Integrated Chip lamp BeadsIntegrated approach: 3 Series 3 ParallelingForward Voltage: 9-12V(if use DC 12,Recommended Series a about 1.50 ohm resistor to use)Forward current: 900mALuminous Flux: 90-120LM/WColor-rendering index: 60-85Beam Angle: 120 degreesWorking Temperature: -20 centigrade to 60 centigradeColor 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 BeadsForward Voltage: 30-36VForward current: 20w(600mA) 30w(900mA) 50w(1500mA) 70w(2100mA) 100w(3000mA)Luminous Flux: 90-120LM/WColor-rendering index: 60-85Beam Angle: 120 degreesWorking Temperature: -20 centigrade to 60 centigradeColor 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