They feature LED lights and have a smart light sensor allowing them to turn on automatically at dusk providing they are switched on and charged, they also switch back off at dawn.

1/4/8/12 x Solar Powered Deck Lights by your choice

Product Benefits:
[Solar Powered]
Solar powered lights, energy-saving and no wiring required. It will charge itself under direct sunlight and light up automatically at night. Ideal for decorating outdoor staircases, fences, docks, decks, and mailboxes.
[Waterproof]
No worries about rain, snow, frost, or sleet. It will perform well in any harsh environment all the time.
[Easy Installation]
No wiring required. Simple installation, done in less than 1 minute. You can use the supplied screws to fix it or directly fixed with the supplied double-sided adhesive on a clean plane.
[Warm Light or Cold White Without Glare]
Each solar deck light has 3 lumens. The warm white LED is enough to illuminate your terrace, courtyard or garden, which is safe for the whole family to go downstairs at night.
[Automatic working mode]
There is no switch for the solar ladder lamp, just pull out the insulator to use. On sunny days, it takes only 4-5 hours to fully charge. It can turn on automatically at dusk and turn off automatically at dawn.
[Wide Use]
Solar safety lights are very suitable for illuminating stairs, paths, gardens, decks, lighting front doors, backyards, driveways, garages, outdoor walls, etc.