This vapor tight luminaire adopts high-grade PC base and milky PC diffuser housing, good quality seal for better waterproof, intergrated the lastest SMD LED technology to achieve higher lumen output and protection rating,also reduce glares. It is avalible in 2FT/4FT/5FT with standard,sensor dimming and emergency version function options. It widely used in tunnel, Rail-way or Metro station, Supermarket, stair well, corridor, evacuation passage especially parking lots, electrical room, ships and other basements. Features High-grade PC base and PC diffuser IP65 /IK10 Rated. High transmittance(86%) PC diffuser. 220lm/w SMD2835 LED chip as light source (approval by LM80). Stainless steel/PC clips option Huge terminal block(hole size 5.0mm) for easy wiring. Clip-fixed Driver for easy replacement and maintenance Surface mounted or hanging installation 5.8G HF Sensor dimming function (option). Emergency function,battery with special housing,quick maintenance the battery (option) Linkable connection function(option) Approved by CE ROHS SAA and C-Tick (RCM). 5 years warranty