AUTOMATION: Solar address sign built-in smart brightness sensor to turn the light ON in dusk and OFF in daytime automatically. It is strongly recommended to install address plaque in direct sunlight for best charging performance. LONG WORKING & CLEAR: Illuminate 10-12 hours at night after 6-8 hours full charged during the day. 6 pcs SMD white LEDs, 12 lumens brightness, the house numbers can be clearly seen at night. MODERN DESIGN: Modern design house number plaque with black strong aluminum frame. The minimalist design suits any architectural style. SUITABLE for OUTSIDE: Make it easy for ambulancemen, doctors and courier to find your home at night. Waterproof system and metal frame can withstand rain, snow and hot weather. Easy to install, wireless, no maintenance cost, long term usage and safe. EASY INTASLL: We will provide you with plenty of durable numbers stickers. Includes: 4 sets of numbers 0-9, 1 set of letters A-E (4H & 1.7 W) and 2 numbers fixed cardboard (3, 4 and 5 digits).