18w Replacement Tube

The OttLite 18 watt replacement bulb delivers the right mix of brightness and contrast to bring true colors and comfortable clarity to your world so you can enjoy your time even more. You’ll see colors accurately and fine print and details with ease under this unique low heat, low glare illumination that helps reduce eyestrain.

If the base of your existing 18w Type B bulb differs slightly in appearance than the bulb pictured on this page, please contact our Customer Service team for instructions on how to safely and easily modify your fixture to accommodate the newer style bulb.

Please note: As of January 1, 2026 state laws prohibit the sale of Pin-Based CFL Bulbs and Lamps that use Pin-Based CFL Bulbs to customers in California, Colorado, Hawaii, Maine, Minnesota, Oregon, Rhode Island, and Vermont.