sorry for my english .
I purchased Ferduino Mega 2560. I am waiting for arrivals .
I want to know how to adjust the light of my lamp led. The ceiling is made up of 72 LED 3W . A power supply for 18 LEDs .
Enclosed is the link to the type of feed used . I would like to adjust the brightness of my 4 channels .
Thanks for any replies.
http://www.wayjun.com/index.php?main_pa ... cts_id=737
power not dimmable