OttLite bulbs are available through Ott-Lite.com, Amazon.com and Joann.com. As of June 2015, Ott-Lite.com carries 12 different types of replacement bulbs that costs between $14.99 for a 15-watt compact fluorescent bulb and $25.99 for a 20-watt replacement bulb.
Amazon.com sells over 50 OttLite replacement bulbs including compact fluorescent, LED and incandescent bulbs. The website also offers customers free shipping on most OttLite bulb orders over $35.
Joann.com sells OttLite bulbs at lower prices than Ott-Lite.com. The least expensive bulb is the 15-watt compact fluorescent bulb that costs $4.99, while the most expensive is the 24-watt replacement tube that costs $17.49.