Sylvania 18 in. 15-Watt Linear T12 Fluorescent Tube Light Bulb, Cool White (1-Bulb)

The 15-Watt Sylvania 21535 T12 linear tube features a lumen output of 770 for either commercial or residential applications. It has a cool white color temperature of 4100K and an average rated life of 9,000 hours. This preheat fluorescent T12 lamp has CRI of 76.|Features medium Bipin G13 lamp base|9,000 hours average rated life|Preheat ballast|Starter required|4100K color temperature rating radiates cool white light to the surrounding|Maximum overall length of 18 in.