Tubes

Key Features and Benefits of This Fluorescent Lamp

At 2100 lumens from 21 watts, this lamp delivers solid output for a fluorescent tube of its size. A CRI of 85 renders colors more accurately than lower-CRI lamps, useful in retail or display lighting. A rated 20,000-hour life reduces how often the lamp needs replacing in fixtures with regular runtime.

Where to Use the FL21-T5-835 Lamp

This lamp suits under-cabinet lighting, display cases, and commercial fixtures built for 33.39-inch T5 mini bi-pin tubes. It is intended as a direct lamp replacement rather than for fixtures using a different base or tube length, so confirm fixture compatibility before ordering.

Installation and Compatibility Checks

The FL21-T5-835 requires a fixture with a G5 mini bi-pin socket and a compatible T5 ballast; it is not a plug-and-play LED replacement. Confirm the existing ballast is rated for a 21-watt T5 lamp before installing, since a mismatched ballast can affect performance or lamp life.

Additional Buying Context

As a direct fluorescent replacement lamp, the FL21-T5-835 suits maintenance stock for buildings still running T5 fixtures rather than a full LED retrofit. Its 3500K warm-white output matches common existing T5 lamps, making it a straightforward match when replacing burned-out tubes in bulk.