LOHAS 50W Blue Color LED Chip Bulb High Power Energy Saving Lamp Chip Drive Voltage:30-34V;Chip power:50w;Luminous(lv):4500lm Size (L*D):50mm*55mm Viewing Angle: 140 degree Daubing the color on the surface of the chip is to protect your eyes. If you like other Colors and Powers,be free to search"Led Chip"in our store plz Blue Light