LETMY Solar Post Cap Lights Outdoor Why Choose LETMY Solar Post Lights? Auto On/Off, Automatically turn on at dusk and off at dawn.Outdoor Decor, Beautiful decoration for fence, deck, garden, patio posts.Hassle-free Installation, Easily to mount on of any 3.5 x 3.5, 4 x 4, 4.5 x 4.5, 5 x 5 in wooden post.Weather Resistant, IP65 waterproof, rugged and sealed to ensure outdoor use. Specifications: Material: Durable Plastic & ABS Waterproof: IP65 Battery Type: Rechargeable Battery Charging Time: 6-8 Hours Working Time: Up to 12 Hours Power Source: 100% Solar Powered Suitable Size: 3.5 x 3.5, 4 x 4, 4.5 x 4.5, 5 x 5 In Notes: The working time of solar post lights and the time required to fully charge will be affected by weather factors.Turn on the switch before using it for the first time or before charging.The solar post cap lights are IP65 waterproof and can withstand rain and snow, but try not to place it in a humid environment for a long time. is not blocked when charging.Please make sure that there is no strong light source around the solar panels at night, otherwise, the outdoor post lights solar powered will not work properly.