The 10A 3.7V/7.4V/11.1V Solar Light Circuit Board Warning Flashing Solar Lamp Controller Module is a high-quality and durable PCB material that is designed to be stable, not easy to damage, and has a long service life. This module is adjustable and can be used to adjust the brightness of the sun lamp according to needs. The module also features a multi-control design that is easy to operate, time-saving, and power-saving. The compact design of the module makes it easy to carry and store and is a good helper for controlling lights. This module is suitable for a variety of solar lighting applications such as solar landscape lights, solar warning lights, solar street lights, solar flashing lights, and more.