1、Brightness Adjustment: The solar column light circuit board has brightness function, with brightness adjustment screw (the brightness of the LED light can be adjusted) 2、Light Control Function: This solar column light circuit board has light control function and can be photosensitive through the solar panel (Will automatically light up when dark) 3、Simple to Use: This is solar lawn light control board, which is easy to install, has the long service life and convenient operation 4、Wide Application: Suitable for circuit control of solar lawn lamps, floor lamps, spot lamps, post lamps, garden lamps, etc. 5、Basic Specifications: The applicable battery voltage is 3.2V-3.7V (The battery needs to have own protective plate), and the applicable solar panel voltage is 5V-6V