perfecto
Arrived nicely packed and very quickly. I used this PWM board to control several USB resistance heater pads connected in parallel. This board cannot do more than about 4A without overheating. The description says 10A continuous, but I used it with 5V 7A and it started smoking. Changed to 12V 3A and it works perfectly. Just be careful with the amount of current you use and it should be fine. Thank you!