Ott-Lite Replacement Bulbs: 18 Watt (4 prong) – Adaptations Store
OttLite 24W Replacement Light Bulb - Energy Efficient Compact Fluorescent Light Tubes, Bright Natural Daylight for Bedroom & Living Room, Low Heat & Glare Type C Lightbulb for Reduced Eyestrain - Led
OttLIte T13330 13-Watt HD OttLite Replacement Bulb, Type A - Fluorescent Tubes - Amazon.com
24 Watt Fluorescent Tube OTT-LITE Bulb | Independent Living Aids