More info
1. This LCD controller is completely compatible with the original adapter for Ramps1.4, Sanguinololu, Megatronics and Rambo.
2. It features that you can configure the duration of the LED light by adjusting TRIMM R4 100K from 10s to 2mins.
3. That means you will not be bothered by the annoying light any more if your printer works at night.