This "bullet-shaped" encapsulated fluorescent lamp is a suitable replacement for a 40-60 watt incandescent light bulb. It is longer than a conventional incandescent light bulb, but with it's narrow profile it will fit in fixtures that don't offer a lot of clearance. It is rated to last for 8,000 hours (most incandescent bulbs last about 1,000 hours).
Light Output: 800 lumens (40 to 60 watt incandescent equivalent)
Note that this bulb is not suitable for use in emergency exit lights, in outdoor locations where it would be exposed to the elements, or in conjunction with dimmers or photocells.