... tubeSpecifications of light fixture:1) Lamp holder material: class V0 fire-retardant engineering plastics, (bullet-proof PC plastic)2) Casing material: ... sheet and shaped in one step, surface with special coating which is urst-proof,proof, not easy to be ... ,hositals, shopping malls,factories,homes,ect.6)Advantage:plastic coating anti-corrosion high-quality electronic ballast inside high power factor ...