... .3W,5W,7W,9W available KMS introduces popular energy-saving LED BULB for you:Products characteristic: 1. Use 44 high brightness , long ... efficiency>70% CRI>70% 3. Built-in switching power supply, input wide voltage: 87-265V. Low weight, safe, long life, high ... load efficiency, and working stability. With open circuit, short circuit, over current and over voltage protection ...