Halco 21W T5 Light Bulbs

For Halco 21W T5 replacements, look for the F21T5 ProLume Eco-Shield models in this selection. Choose from 3000K, 3500K, and 4100K options to match the light color in your existing linear fluorescent installation.

Use the full F21T5 model number to narrow your choice, then check the lamp length, miniature bi-pin base, and ballast compatibility. Other fluorescent lamp types also appear on this page, so confirm the T5 designation and 21W rating on the individual listing before ordering a replacement.