Reprap Smart Controller LCD12864 Version (LED turn on control) Description 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. Size: 10*9.5 cm Weight: 137 g One Package Weight:0.25kgs / 0.55lb One Package Size:19.5cm * 15.5cm * 3cm / 7.68inch * 6.1inch * 1.18inch Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia