The solar string light circuit board can be used for 100LED solar string lights, solar string lights, solar copper wire string lights, solar road studs and other lighting control. Comes with a power switch and a light mode switch It can be connected to 1.2V Ni- battery and 2V solar panel. The maximum withstand charging current is 400ma. The discharge current is 100ma. Introduction to mode switching: 1: 2-8 function cycle 2: The stars flash 3: pair flash 4: One way fades out 5: Single flash 4 times, pair flash 4 times 6: All fade in and 7: Single flash 4 times 8: All bright Model Number:1.2V Solar Lamp String Control Board color:Green Material:plastic Package Contents: 2 x Solar Lamp String Control Board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.