Review on 💡 2 PCS LD24AJTA Adjustable LED Driver Board 20W DC6~25V LED PWM Controller - Step-Down DC-DC Converter with Constant Current by Charles Collier

I was looking for a compact constant current LED driver and this worked for me. This driver is based on the PowTech PT4115 LED driver IC. Note that the potentiometer is connected to the chip's DIM pin and not to the current sense circuitry. If you want to use it with an Arduino or other microcontroller via the PWM pin, it will overwrite any current settings set with the potentiometer. If you want to use PWM and need a current setting other than 900mA, you'll need to replace the RCS with a resistor of a different value. The RCS value can be calculated using the following formula: Iout = 0.1/RCS.