This Micro-Brite™ cold cathode fluorescent lamp is a direct replacement for a 25-30 watt incandescent light bulb. This Micro-Brite lamp has an expected life of up to 18,000 hours. In commercial applications, due to their long life, Micro-Brite lamps can help to cut down on maintenance and replacement costs. This Micro-Brite A19 lamp is the same shape and size as an incandescent A19, but with all the benefits of cold cathode technology, including being dimmable, flashable, and suitable for use in hot and cold environments.