Solar lights outdoor are very suitable for lighting, decoration and marking. It can be easily installed vertically or flat on stairs, paths, gardens, mailboxes, decks, docks and fences. The solar deck lights battery can make the lamp run for 810 hours all night, and automatically recharge during the day. Even on cloudy days, solar panels can collect solar energy. You don’t need to do anything because the light itself will turn on at night and turn off during the day. These Solar Step Lights are more durable and more efficient than traditional glass bulbs. Tips: If the deck solar lights you received does not light up, please push the switch to the auto mode, and then put the solar fence post lights in direct sunlight for at least 8 hours, and then take it to a completely dark room to see Whether it will light up. Install the Solar Fence Lights outdoors and adjust the angle of the solar panel to ensure that it can receive the maximum direct sunlight; Always keep the switch in the auto mode, it will automatically light up at dusk every day; At night, please make sure that the ambient light is not too bright, otherwise the sun will not light up, because it has a builtin light sensor, which may be affected. specification: Solar panel: Monocrystalline solar panels LED type: floodlight Light color: Warm White (3000K)/True White (6500K) Lumens: 30 Battery: 1.2V / 600mAH AAA NiMH Material: stainless steel + ABS + PC Product size: 10 x 3 x 8.2cm Net weight: 80g Package includes 8 x solar step lights 8 x screw set User Manual