B21 Explosionproof floodlight is suitable for large-scale floodlighting in potentially explosive,flammable locations, indoor and outdoor work, construction site, and so on Excellent explosion-proof performance enables the light to work safely in potentially explosive and flammable locations. /With MH-HID light source, its average service life is more than 20000 hours, which can reduce the cost of the user efficiently. /The enclosure is made of aluminium-alloy material Precise structural design and surface finish lead to good waterproof and resist water immersion and excellent anti-corrosion performances. and never rust. The lamp cap can rotate up and down through an angle of 180 surrounding the axis of the bExplosionproof marking: Ex d C T4racket ends of the lamp holder to meet lighting angle demands of different operational sites explosionproof marking:Exd IIC T4 Degree of protective enclosure;IP65 Degree of anticorrosion: WF2