Product parameters Model: GP6680 input voltage: AC100-240V output power :28-42W output current: of 1000mA ± 3% output voltage :28-42V conversion efficiency: 85% Power Factor: 0.9 Size: 120 * 48 * 25 mm (L * W * H) bare board product characteristics: a perfect protection function: open circuit, short-circuit, overload, over-temperature protection, etc., to ensure the safety of products; 2. constant output current of high-precision, low-noise, to ensure use of LED the security, stability, reducing the light fades; 3. using efficient, low power consumption, stable PWM control chip, so that products meet energy-saving, environmental protection purposes; 4 high-quality selection of components, 100% aging product provide a reliable guarantee quality and longevity; 5. input and output is completely isolated to ensure safe use. Description: This product is mainly used in the constant current drive power, LED street lamps used in street lamps, line lights, floodlights. Chosen depending on the parameters of a specific model of our products. Product ends of each of two lead wires, two white lead at one end for the AC input terminal, connected to the power supply input; two red and black lines of the other end, respectively, LED + red lead, the output positive terminal, drive LED lamp Cathode, LED-as Black lead output negative terminal, then the LED lights negative.