This 100 watt Mercury Vapor bulb has a mogul base, a 24,000-Hour rated life and an overall length of 7.50". This bulb requires a separate ballast and can be burned in any position.
Brightness 4000 Lumens
Estimated Yearly Energy Cost: $12.05 based upon 3 hrs/day. 11c/kWh. Cost depends on rates and use.