Tri-Proof Fixture (SMD – GS | OS Series), are heavy-duty, super-bright alternative to traditional light fixtures mainly for outdoor usage under tough weather conditions. The SMD version is an upgraded LED version tri-proof fixture, which uses PCB printed with LED chips as the light source, and power by internal driver installed inside the Tri-proof fixture to save the cost of light tubes subject to breakage. Tri-proof stands for water proof, dust proof and corrosion proof, which means that the fixture could well protect light source from these wearing causes. Tri-proof LED Fixture use full plastic as body material which could be with HIPS / ABS / PC. They use transparent cover made of PC / PS. The cover and base are locked by either plastic or stainless-steel clips. There are also stainless-steel base model using tempered glass cover. SMD Tri-proof fixture cand be made in length 0.6m, 0.9m, 1.2m and 1.5m, which power ranting ranges can be 18W, 20W, 36W, 40W, 54W and 60W. Tri-proof fixture use screw mounting metallic clamps to install, which they could be use both indoor or outdoor in damp underground pedestrian walkway, harbor walls or ceilings, as well as outdoor building or construction site. Waterproof linear fixture is particular safe and reliable, and well certified by TUV and SGS with CE, RoHS, ERP and CB.