Power adjustment: Remove the 1206 package resistor on the board to reduce the output current
Working voltage: input 3-4.2V
Output voltage: 3V or less
Dimensions: 10*20mm (width * length), board thickness 1.0mm
Reverse connection protection: unique reverse connection protection design, you don’t have to worry about burning the battery when you are careless
Important note: If you are driving a 300mW 638nm diode, you only need to remove the R030 resistor. If you are driving a 500mW or 700mW, you only need to remove the two R100 resistors above.
Pin definition: The pads are specially designed for 300-700mW 638nm pins. You only need to arrange the pins in a triangular arrangement and solder them naturally. Unlike other boards, you need to cut off a pin or solder in a staggered way!
This board can also be used to drive 808nm and 660nm laser tubes, but the leads need to be soldered out. For example, it can be used for 808nm 300mW with 1 ohm resistor.
It is recommended to use 3.7V lithium battery (16340, 18650, 14500 and 18500 power supply), or directly use 5V DC power supply.
Package
2PCS 2.5A 638nm 300-700mW Orange Red Laser Diode Constant Current Driver Board
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