1. Check the battery: Ensure the battery is charged and installed in the correct direction. Do not use batteries of different brands, and do not mix old and new batteries. 2. Check the tail cover: Ensure the switch is tightened properly and has good contact. Make sure the copper post of the tail cover contacts well with the metal piece of the pressure ring. Pay attention to whether the lamp base is loose.
Finding high quality products in Yiwu
China, Yiwu China Commodity Market (Yiwu wholesale market), the
World's Largest Commodities Trading Center Online.