NUVO Lighting 65-643R1 LED Adjustable High bay, 135W, 4000K, Integrated Sensor Port, 120-277V

One fixture covers both. The 65-643R1 linear high bay is universal voltage, 120V through 277V, so the same part number works on 120V single phase or on a 277V lighting panel. No separate voltage SKU to specify.

18,524 lumens at 135 watts, in 4000K neutral white. That works out to roughly 137 lumens per watt. The color temperature is fixed, not field selectable, so if you need 5000K on the same job you'll need a different model rather than a switch on the fixture.

Damp location only, and indoor. The 65-643R1 is rated for damp locations, which covers things like a covered dock or an unheated warehouse with condensation, but it is not a wet location fixture. Anything with direct water spray or full weather exposure needs a wet-rated luminaire instead.

It ships with an integrated sensor port, so a compatible sensor plugs into the fixture rather than being wired in separately. The driver is also dimmable, which is what lets a daylight or occupancy control actually modulate output instead of just switching it. The sensor itself is a separate order.

The fixture measures 26.00 inches in length, 12 inches in width and 1.88 inches in height, and weighs 9.04 lbs. The low 1.88 inch profile and light weight matter on tight-clearance ceilings and on suspension points. Whips and leads are short: the wire length is 5.91 inches, so plan a junction box close to the fixture.

No lamps to buy. The LED array is integrated into the fixture, so there is no socket, no base and nothing to relamp. Average rated life is 50,000 hours. When the LEDs reach end of life you replace the luminaire, not a bulb, which is the tradeoff against an older lamped high bay.

It carries a cULus safety listing, which covers both US and Canadian requirements, and the fixture is RoHS compliant. One note for California jobs: it is flagged under Prop 65 for lead.

The 26 by 12 inch linear form spreads light along a run, which suits aisles, racking rows and shop bays where you want an even wash down a length rather than a circular pool under each point. A round UFO high bay concentrates output in a tighter footprint and is the better pick for open floor areas on a wide square grid. This one is also adjustable, so the light output can be aimed rather than fixed straight down.

80+ CRI is the standard for industrial and warehouse work: color rendering is accurate enough for picking, labeling, and general assembly. Where it falls short is fine color matching, paint booths, print inspection or retail display, which usually call for 90+ CRI.

It is a ceiling mounted fixture with an aluminum alloy body. Aluminum doubles as the heat sink on an integrated LED high bay, which is why the housing runs that material rather than steel. At 9.04 lbs it is light enough for standard suspension hardware.

White is the only finish offered on 65-643R1. There is no bronze or black option under this part number, so a facility standardizing on a dark fixture will need a different model.