Current leakage protection, passed UL1993 new standard(Review ID# 1993-2018-006) 3 in 1: Ballast compatible, single-ended ballast bypass, double-ended ballast bypass Reduce 66.66% inventory, save your money Light glow in bending area, no dark area Optional housing: Glass PET coating, glass painting, Nano PC Shatterproof design: Meet NSF requirements Automatic production, high product consistency and low manufacture costs Lifespan: 50, 000hrs Warranty: 5 years