I want to do a point LCD lamp tool I high-voltage board is 12V 12V SW ADJ GND GND can not I know how to wire to light the lamp?

High-voltage board input interface is defined as: VCC VCC ON/OFF ADJ GND GND

Ordinary voltage value: +12V +12V 5V 3.3V 0V 0V

Simple connection: +12V Empty 5V Empty Ground Empty in the above: point single, double, four lamps of the high-voltage board of the wiring method is the same. Only the order is different. ON/OFF ---- for the high-voltage board switch control foot, as long as the addition of 5V, the high-voltage board can be started to light up the lamp ADJ ---- for the high-voltage board brightness adjustment. General LCD, through the brightness adjustment on the high-voltage board to control the size of the output voltage, to realize the strength and weakness of the lamp. Can also be generalized to drive the menu key on the board to control the brightness. In order to maintain or simplify the production, high-voltage board ADJ generally can not be connected (empty NC). You said SW should be switch control.