Product details:

Be prepared when your lamp goes out with the Ott-Lite Replacement Bulb. This package contains a replacement light for TC10016, TC10018 and TC10471 lamps. This bulb provides bright and reliable lighting for your home or office to help you read, write or simply relax. Use this 18 watt bulb for a comfortable light source. With OttLite Natural Daylight Illumination you can see details clearly so you can do what you love, longer.

Features:set of 4, energy efficient rated to last up to 10,000 hours, low heat, low glare illumination helps reduce eyestrain, for use only as a replacement tube with specific ottlite lamps, 7.5 in. l x 1.75 in. w x 9 in. h (1 lbs.). . . 18w replacement tube is specially designed to help you read and see with amazing clarity and comfort. words practically jump off the page under low heat, low glare ottlite illumination."
Brand:OttLite
Manufacturer Part Number:086998
Assembled Product Weight:3.6 oz
Manufacturer:OttLite
Assembled Product Dimensions (L x W x H):1.00 x 6.25 x 9.50 Inches