1, high luminaire efficacy up to 155lm/w. Up to 75% energy saving(compared to t8 fluorescent lamp), money saving and earning. 2, provide glare-free light for optimal visual comfort. 3, photobiological safety of lamps:iec/en62471. 4, excellent heat dissipation, decreasing the lumen loss. 5, safe and easy installation, retrofit for existing t8 fittings or direct connection to the mains. 6, warranty up to five years. 7, meet global market standard with vde, vde mark, saa, erp, emc.Ce etc.