SATCO Lighting S18412 13W T8 U-BEND LED, 50000 Hours, Medium Bi Pin Base, CCT Selectable, Type B, White Finish, 120-277V

Yes. The S18412 is a Type B ballast bypass lamp, so the existing fluorescent ballast has to be removed and line voltage wired directly to the sockets. That is an electrician's job on most commercial fixtures. If you want a lamp that drops into the existing sockets with the ballast left in place, you need a Type A plug-and-play U-bend instead, not this one. The payoff for the rewire is that there is no ballast left to fail, and the lamp runs on anything from 120V to 277V, so the same part works on both the 120V and 277V circuits in a building.

It is a CCT selectable lamp with three settings: 3000K, 4000K and 5000K. You pick the one you want at install, per lamp, which is what makes it useful for an MRO stock room. One part number covers the warm 3000K in a lobby, the neutral 4000K in an office, and the 5000K in a back-of-house or shop area, instead of stocking three SKUs. Output shifts slightly with the setting: 1850 lumens at the warm end and 1950 lumens at the other two.

Yes, it is an enclosed rated lamp, so a wraparound, a lensed troffer or a closed drum will not cook it. Location rating is damp, indoor. That covers a covered walkway, a parking garage soffit, a bathroom or a kitchen area. It does not cover wet locations, so no exposed exterior, no direct rain, and nothing where the lamp itself could be sprayed down.

The S18412 puts out 1850 to 1950 lumens depending on the color setting, off 13 watts, with a 160 degree beam spread and a frosted plastic lens so it spreads across the troffer rather than throwing a hot spot. Satco rates it as a 50W incandescent equivalent. Against the F32T8 U-bend it is replacing you are trading some raw lumens for a large cut in connected load, which is the usual reason a property manager does this swap in the first place. In a two-lamp troffer over a corridor or office that reads as comparable light; over a high task area, count your existing lamp output first.

No. This 13W U-bend LED is not DLC approved, so it will not qualify under a utility program that requires a DesignLights Consortium listing. If the rebate is what is funding your retrofit, verify the program's qualified products list before you commit to the quantity. It is FCC compliant and marked lawful for sale in California.

Satco rates the S18412 at 50,000 average hours. On a 12-hour-a-day office or corridor schedule that is well over a decade of service, and with the ballast bypassed there is no ballast left in the fixture to fail in the meantime. That relamp interval is usually the whole argument for a property manager doing the conversion across a building.

Direct wire specifics for this 13W U-bend are not something to guess at on a ballast bypass lamp, so here is what the data settles: it uses a medium bi-pin base at each leg and runs 120V-277V at 50/60Hz, drawing 0.11A at the low end of the voltage range down to 0.05A at the high end. Have your electrician confirm the socket wiring against the markings on the lamp before energizing.

Burning position is universal, so base up, base down, horizontal in a troffer, or vertical in a wall-mount all work. There is no orientation restriction to track when you are doing a floor of fixtures.

CRI is 80, which is the standard commercial benchmark for office, corridor, back-of-house and general retail. It is not a high-CRI lamp, so for color-critical work like a paint counter, a fabric showroom or a gallery, specify something in the 90+ CRI range instead.

Plastic base and a plastic lens with a frost finish, in a white housing. No glass tube, which matters in a school, a gym, a food prep area or anywhere a shattered fluorescent tube would mean a cleanup and a contamination report.