Circuit control: 5V step-up circuit,constant current output,3V-5.5V
power supply output stable.
Size: 20mm (L)*10.2mm (W)
Reverse Connection Protection: The unique design of the reverse
connection protection, don't need worry about burning plate when
batteries put in the wrong way.
Quick Start Protection: With soft start protection, even though you
turn on or turn off power supply frequently, it won’t damage the
The pad is designed for 445nm drive plate, you only need to weld
according to the pin arranged in triangle , not like the other
plate, to cut off one foot, or staggered welding.
Module shell is positive, back ends pad is negative. It is
recommended that use 3.7V lithium battery (such as 16340 /18650
/14500 and 18500) , or use 5.5V DC power supply directly.