... :Color temperatures: WW: 2,800 to 3,300KPW: 5,500 to 6,500KCW: 6,500 to 7,000KDimensions: Φ168 x 110mmLuminous ... transformerPerformance description: Epistar silicone encapsulated high power LED makes 90 to 110lm/W with low luminous depreciation, high brightness, and ... optical lens allows beam angle ranges from 10 to 60°External transformer is easy to install and maintain Colors: red, green, blue, ...