Auto product features : all the lights from four 500W Philips Lamp Holder composed of a combination lamps. Lamp Holder in the 180 meter-meter high levels arbitrary regulation, Lamp Holder in four surveyed four different azimuth angle to the arbitrary adjustment downward fitting can be rotated 90 °, Lamp Holder lighting will be transferred to the same direction -- a balance between. Can be reached 40m radius around the greatest exposure. Particularly applicable to oil fields, railways, roads change, bridge construction in the field of lighting. Lighting metal material, stable performance in the uneven surface of a fixed, reliable and normal in adverse weather conditions, to prevent rain water, anti-typhoon. -- Prolonged access to 220V lighting lamps lighting can also use direct power generators.