SATCO Lighting S11903 3W T5 LED, Miniature bi-pin Base, 6500K, 270 Lumens, Type B, Ballast Bypass, Double Ended Wiring

It's a Type B lamp, so the ballast gets bypassed. No ballast or external driver is required, and the fixture has to be rewired for double ended wiring (line on one end, neutral on the other) before the lamp goes in. If you leave the old fluorescent ballast in the circuit, the lamp won't run correctly. Budget the rewire time into the job, because a Type B conversion is an electrical modification to the fixture, not a drop-in swap.

The lamp uses a miniature bi-pin base, which is the standard T5 socket, so it seats in a T5 fixture mechanically. The catch is electrical, not physical: it runs 120V to 277V straight to the pins with the ballast removed. Confirm the fixture can be rewired for direct line voltage before you commit a batch of them.

No. It is a non-dimming lamp, and it is not three-way. Put it on a standard on/off switch or a relay. If it lands on an existing dimmer circuit you'll get flicker, buzz, or no start at all, so pull the dimmer or pick a dimmable lamp for that zone.

It's an enclosed rated lamp, so a sealed or gasketed fixture won't void it the way it would with many LED tubes that need open airflow. Location rating is damp, which covers bathrooms, covered exterior soffits, and similar spots with moisture in the air but no direct water. It is not rated for wet locations or direct spray.

Yes. It's rated 120V through 277V at 50/60Hz, so the same lamp works on residential 120V and on 277V commercial lighting branch circuits. Current draw is 0.025 to 0.011A across that range, dropping as voltage rises. One part number covers both, which simplifies stocking across a mixed-voltage building.

270 lumens at 3 watts, which Satco rates as a 25W incandescent equivalent. That's a low-output lamp for display cases, under-cabinet strips, sign and cove runs, and appliance or task fixtures rather than general room lighting. The 240 degree beam spread with a frosted lens spreads light around the tube rather than throwing it one direction.

6500K is daylight white, the coolest, bluest end of the common range. Next to 3000K warm white or 4000K neutral it reads distinctly blue, so don't mix it into a run with warmer lamps unless you're relamping the whole row. CRI is 82, and the color is fixed, not CCT selectable, so what you order is what you get.

Title 24 compliant, and FCC compliant. It is not DLC listed, so if your rebate program requires a DesignLights Consortium qualified product ID this lamp won't clear that particular screen. For California code compliance on the lighting itself, it meets Title 24.