... and ballast: <<8MShape Dimension: 138x91x29mm Technical Specification-solar charge controller:It can be used in direct-current electroless lamp,direct ... viewing LED instruction, LED light bright indicates the charging status.5. Fixed time can be adjusted to 10H,8H, 6H, ... to the opposite orders4. In order to ensure the controller working normally, Short-circuiting, connecting wrong or opposite are ...