Imported super bright LED chips and built-in constant current ... LED lighting: 1 Energy, the energy consumption of incandescent lamp white LED's 1 / 10, AC220V/AC110V/DC24V/DC12V ... voltage power supply design, using the PWM constant current technology, high efficiency, low electromagnetic radiation; 11, universal standard bases, ... lamps, light bulbs, metal halide light source LED HIGH-POWER BULBS LAMP