How to Use: 1. Use short screws to install the house number on the lamp body 2. Use long screws and expansion screw tubes to install the product on the wall 3. Turn on the light on the product, turn on the light. Specification: Item Type: House Number Light Material: Stainless Steel+ABS Weight: Approx. 292g / 10.3oz LED Lamp Beads: 4LED Battery: Built-In 1xAA Ni-MH battery with a capacity of 600mAh (included) Product Size: Approx. 18.6x7.7x4.2cm / 7.3x3.0x1.7in House Number Size: Approx. 16.9x13.1cm / 6.7x5.2in Waterproof Rating: IP65 Service Life: 50000H Package List: 1 x Lamp 1 x House Number 1 x Sticker 1Bag x Installation Parts (2xShort Screw, 2xLong Screw, 1xExpansion Screw Tube) Note: 1. Please allow 1‑2cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.