YX861A is a two-function solar lamp string control chip, suitable for 1-3 1.2V rechargeable battery powered solar products, two functions for the steady on and shining function. The solar LED light string controller YX861A is a functional light string control chip specially developed by our company according to the working characteristics of the solar LED light string. The main functions are boost voltage, light control, flicker and flicker pulse width modulation, etc. The most important is that the LED light on and off time can be adjusted. The controller has a high conversion efficiency: 80~ 85% (typical value), which can reduce the power requirements of solar cells; The output current is adjustable, the peripheral components are few, and the flashing frequency is adjustable