Replacement Bulb for Ott-Lite WingShade Floor Lamp Dramatically reduces glare and eyestrain 18-watt tube is rated for 10,000 hours use Replacement Bulb ONLY. Use for your Ott-Lite WingShade Floor Lamp (item 671359) This Replacement bulb for Ott-Lite VisionSaver Plus 18-Watt Floor Lamps features VisionSaver technology that offers high contrast, low heat, low glare illumination which enhances visual acuity and helps reduce eyestrain. Energy-efficient VisionSaver 18-watt, 10,000- hour rated tube has an output of 810 lumens.