The solar string light circuit board can be used for 100LED solar , solar , solar copper wire , 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 2: The stars flash 3: pair flash 4: One way fades out 5: Single flash 4 , pair flash 4 6: All fade in and 7: Single flash 4 8: All Model Number:1.2V Solar Lamp String Control Board color:Green Material:plastic Package Contents: 1 x Solar Lamp String Control Board Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.