Rough service Bulb Buddy halogen bulb storage case with halogen light bulbs. Holds (6) 500 watt T3 double ended RSC short base bulbs. Foam inserts and durable plastic case protect bulbs from damage. Ideal for the jobsite or other applications where bulbs could be damaged. Bulbs feature a heavy-duty filament support. Each bulb is rated for 4000 hours. 6 bulbs included.