NUVO Lighting 65-644R1 LED Adjustable High bay, 135W, 5000K, Integrated Sensor Port, 120-277V

One fixture covers both. The 65-644R1 is a universal-voltage driver rated 120V to 277V, so the same part works on 120, 208, 240 or 277 volt circuits. That matters if you're mixing a 277V warehouse bay with a 120V shop area, you stock one SKU for both.

No. The 65-644R1 is an indoor fixture with a damp location rating only. Damp covers a covered loading dock, a humid warehouse or a stairwell where it won't take direct water, but not a wash bay, a rain-exposed canopy or any wet location. For those you need a wet-location rated fixture.

The 65-644R1 has a sensor port built into the housing so an occupancy or daylight sensor can be added to the fixture. The fixture itself ships as an integrated LED unit with no lamp to buy, but a sensor is a separate item you specify and order on its own. If your energy code requires occupancy control in the space, budget for the sensor as a line item alongside the fixtures.

It's a ceiling-mount fixture and comes with a 5.91 inch wire lead for connection. That's a short tail, so plan on a junction box close to the mounting point or a whip to reach it. The housing is aluminum alloy and the fixture weighs 9.04 lbs, light enough that the mounting point, not the weight, is usually what dictates the method.

Only if your existing fixtures are 5000K. The 65-644R1 is fixed at 5000K, a cool daylight white, and it is not a CCT-selectable fixture, so there's no field switch to drop it to 4000K or 3500K. If you're replacing a few units in a bay that's already 4000K, the new ones will read noticeably bluer. Color rendering is 80+ CRI, standard for a warehouse or shop space.

Yes, the 135W adjustable high bay is a dimmable fixture, so it will work with a dimming control scheme rather than being a straight on/off load. Pull the dimming leads in with your feed when you rough in the branch circuit so you aren't back on a lift later.

The fixture carries a cULus safety listing, which covers both US and Canadian installations, and it is RoHS compliant. For facility standardization: one thing to flag is the California Prop 65 notice for lead on this product, which some institutional purchasing groups require on file.

No. The 65-644R1 is an integrated LED fixture, there is no lamp base and no replaceable bulb. When it reaches end of life the whole unit is swapped. Rated life is 50,000 hours, so at roughly 12 hours a day that's over eleven years before you'd expect to be back up there.

It's a slim fixture, 1.88 inches tall, 26 inches long and 12 inches wide. The low profile means it eats very little headroom under joists or ductwork compared to a bell-shaped high bay, which is often the deciding factor in a retrofit where the old fixture hung a foot below the deck.

White is the finish on the 65-644R1. It's a utility-style aluminum alloy fixture, so the white housing is a functional finish that also helps with reflected light in a warehouse or gym, not an architectural one.