Auto Switch House NumbersSwitch to "AUTO" before the first time use the house numbers. Built-in sensor in the solar panel will turn on the light in dark and off in daytime. And it will work perfectly under normal sunlight exposure.Long Working HourWith normal sunlight charge our address numbers can provide 10~12 hours illumination for your house daily. In Extreme weather, the 2000mAh rechargeable battery can illuminate 40 hours continuously without a charge.Manufactured With Strong MaterialThe frame is made by black strong aluminum, 1/4 inches thick for the PVC board. Our house numbers can suit any weather condition and architectural style.Clear Numbers and Easy AlignmentEach package includes: 4 sets of numbers 0~9, 1 set of letters A~Z each with 3.5H and 2.3 W and 2 aligned templates (4 and 5 digits). Suitable for any combination of address numbers.Easy Install and Muti-FunctionDrill two holes with 8.4 distance and hang on the address plaque. No more dislocate visitor to your house with this address sign.