Part Number: MP70/ED17/U/4K Wattage - 70w Bulb Shape: E17 (standard) Base: Medium Burn Direction: UniversalCompatible with Pulse Start or Standard MH Ballasts
Part Number: MH250-PSBUWattage - 250w Bulb Shape: BT28 (standard) Base: Mogul
Part Number: MH320-PSBUWattage - 320w Bulb Shape: BT28 Base: Mogul
Part Number: MH400-PSBUWattage - 400w Bulb Shape: BT28 (compact) Base: Mogul