Programmable Smart Thin Design, Thickness: 1.2". Light weight easy handle Splash WaterProof, UVProof Make it can work Outside Facing the Direct Sunlight Ultra High Light Can be seen from 500 feet away to Chase Business Chance Day and Night. Integrated Metal Case Design, Make it strong enough for Kids step on. And the Top & Back install device make the installing job easy a lot. UL Listed Power for safety of person