?????????? ??????Solar Lamp Controller Solar Power Charging Module 3_7V MPPT Lithium Battery Control Circuit Board with Switch Power Bank Module for Solar Panel Outdoor and Lawn

Q: ?What Should I Do If There Is A Problem When The Product Arrives??A: When there is a problem with the product, please take photos in time to retain evidence and show it to our professional customer service, you will get the most satisfactory answer. We will never let you take responsibility for products damaged during logistics! At the same time, before we sell it to you, we will have a professional inspector to inspect the products to be packed.Item Type: Solar Lamp Controller ModuleWorking Voltage: 3.7V lithium battery Charging Current: <1A Overcharge Protection: 4.25V Over Discharge Protection: 2.8V Light Board: 3.0-3.2V lamp beads in parallel Output Power: <1W Level: 3 Levels (light off, full power, low power) Working State: The solar panel recharges the battery when the light is on during the day. The LED light panel does not work. When there is no sunlight in the evening, the LED light is automatically turned on. Size: Approx. 36 x 23mm / 1.4 x 0.9in Hole Distance: Approx. 25mm / 1in Package List: 1 x Module 1 x User Manual