ITEM NAME:Switching power supply transformer power supply driver Driver 100W DC 12V 8 L5V7 Switching power supply transformer power supply driver Driver 100W DC 12V 8 L5V7 Here offers the 100% brand new and good-quality switching power supply for LED Strips. It works efficiently and is only low heat. The switching power supply is provided with protection against over voltage, short circuit and overload. Its output of constant voltage ensures the stability of power supply. With the anti-interference function guaranteed a long lifetime of the LED lamps. 100% brand new and high quality luminescent color of the ring-bulb: blue There are power indicator on the panel thread: Approx. 16 mm Panel Diameter: Approx 17 mm package contentsï ¼Å¡1 x power supply transformer Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm..There are power indicator on the panel. It works efficiently and is only low heat.