Giant edison screw (GES) E40 capped 400w MBF/U mercury fluorescent elliptical lamp with excellent reliability throughout the 6000 hours average life. This bulb is ideal for warehouses, roads/street lighting, parking lots, etc.
Watts: 400
Colour temperature: 4000K
Lumens: 21,000
Life span: 6,000 hours
CRI: 40
This bulb cannot be connected directly to a power source, it requires a ballast.
If you require bulbs that need to go directly into the power source you need a BHPM which are available in our ebay shop.