30 years factory for 250W mercury bulb 1.long service life. 2.excellent in quality and reasonable in price. 3.OEM CE&ROHS 250W mercury bulb Parameter: TypeVoltage(V)Current(a)Lumens(LM)Life(H)Watt(w)BulbCapD(mm)L(mm)MV 80W110±150.853400800080E70E2770155E75E2776173MV125W115±151.2560008000125E75E2776173MV250W130±152.151200012000250ED90E4091225BT90240MV400w130±153. ...