LOHAS 50W Watt High Power LED Driver Power Supply Lights Lamps Bulbs Driver Power:50w;Current(IF):1700MA DC Forward Voltage(VF):30~34V DC Size (L*W*H):85mm*35mm*25mm Material:Aluminum Instruction&lt;1&gt;The two red wires should connect to the power supply &lt;2&gt;The red wire(positive) and the white wire(negative) connect to the led.