Halco 39W T5 Light Bulbs
Find Halco F39T5 high-output fluorescent lamps in 3500K and 4100K options. These 39W Eco-Shield models offer a slim linear design for existing T5 HO fixtures, with a miniature bi-pin base and a listed length of 34 inches.
Use the complete F39T5/HO designation to identify the T5 models among the other fluorescent lamps listed here. Match the wattage, length, and ballast requirements to your current installation, then select the color code that keeps the light appearance consistent with your surrounding fixtures.