Simple LED driver than you can adjust the voltage. Use a small screwdriver to adjust the variable resistor to the level required. Can power more than 1 LED but do not go over the 1500mA maximum draw. PWM wire can be left off if PWM control is not being used.
Price per piece.
Operating voltage:DC 2.8-6V(3V 3.3V 3.7V 4.5V 5V 6V LED driver)
Output current:30-1500MA
Large output power:9W
Can drive 1-16PCS 2.8-6V LEDs(high current not more than 1PCS)
