Kind of like the moon appearing after the sun goes down, these Solar LED Address Numbers illuminate at night making the numbers easy to read. The unit turns on automatically and lights up using two bright white LEDs. Mounting is simple (no wiring or timers) with the included hardware. The number plate itself is spaced 1" from the wall causing the LEDs to provide a backlighting effect. The numbers are made from anondized aluminum and the entire unit is weather resistant. The lights run on for about 8 to 10 hours (direct sunlight, of course, producing the best results). Simply select from the dropdown the numbers needed to create your address. •Mounting hardware included •Solar powered - can run 8 to 10 hours on a full charge •Numerals are 3.5" high and cut into 3/32" anodized aluminum •Dimensions: 6 1/8" H x 3 1/2" W x 1 3/8" D •Choose the numerals to form your address •One year manufacturer warranty •Note: Listed price is per number