LED Flashlight Driver 0.77*0.3inches the global minimum size 2.5V 2.6V 2.7V 2.8V 2.9V 3V150mA 3.4V150mA 3.5V150mA3.6V 150mA

1:1963-350-005 PCBA

2:INPUT AAA BATTERY "-"

3:INPUT AAA BATTERY"+"

4:LED LAMP ,SEOUL SEMI ,0.5W P9

3.65V 150mA 0.5W DC To DC LED Flashlight Constant Current Driver