Philips 26286-5 - F36T12/CW/HO - 45 Watt T12 High Output Fluorescent Light Bulb, 36", Cool White
High Output Fluorescent Tubes will ONLY work with high output ballasts and high output sockets. HO fluorescents will NOT operate on standard fluorescent fixtures and are not designed to replace standard fluorescent tubes. The actual measurements of HO tubes are approximately 2 inches shorter than manufacturer specifications.