led driver DC20-36V 30w 900mA led power supply floodlight driver (10 series 3 parallel) waterproof, Lighting Equipment Dedicated Power Supply Transformers Light emitting diodes (LEDs) are low-voltage light sources that require a constant DC voltage or current to operate optimally. they operate on a low-voltage DC power supply, they easily adapt to different power supplies, have longer standby power, and are safer Driver,Power supply suitable For Outdoor Lighting Equipment which need DC 12V suitable for other Electronic product which use DC 12V power supply. The Switching Power Supply LED driver converts 120V 60 Hz AC power to the 12 Volt DC power required by the LEDs and protects them from line-voltage fluctuations. protection:Short circuit protection, Over power protection,Over voltage protection.