LED High Bay Lights

LED high bay lights matched to mounting height, the number that actually sizes the fixture, with UFO and linear styles in stock and ready to ship with free shipping on every order. The height table below the products pairs lumen packages and beam angles with your ceiling, and the wattage takes care of itself.

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LED High Bay Light Planning Guide

UFO Lights or Linear: The High Bay Decision

The form factor question has a clean answer once you look at the floor plan. LED UFO High Bays are compact round fixtures that hang from a hook, pendant, or bracket on a beam; their symmetric distribution suits open floors, gyms, and staging areas where light should spread evenly in all directions. Linear LED High Bay Lights throw a rectangular pattern that matches aisles, racking slots, and production lines, and they replace legacy fluorescent high bays row for row. Mixed facilities usually end up with both: UFO lights over open floor, linear over the racking.

High Bay LED Lights: The Specs That Decide the Order

Once height and form factor are set, four specs finish the schedule. Color temperature: 4000K and 5000K dominate work environments, with 5000K preferred where alertness and contrast matter. CRI: 80 plus covers most industrial tasks; pick higher only where color inspection happens. Controls: 0-10V dimming is near universal on commercial-grade high bay led lights, and plug-in motion sensors turn any aisle into a high-efficiency occupancy zone, dimming to a low level until a forklift or picker arrives. Certifications: DLC listing qualifies fixtures for the utility rebates that routinely improve retrofit payback. A 150W LED high bay is the typical one-for-one replacement for a 400W metal halide, and the difference shows up on the demand charge as well as the energy line.

From This Page to a Fixture Schedule

Count your mounting height off the table, pick UFO or linear from the floor plan, then check stock status and lead times on the product pages, which are listed at the item level. Wet and washdown areas in the same building take Vapor Tight Lights, occupancy control hardware lives under Motion Sensors, and the rest of the facility catalog is organized in Industrial Lighting. Send our team a floor plan with heights and target footcandles and we will help you check the fixture count before you order.

LED High Bay Lights Matched to Mounting Height

Every high bay category page filters by wattage. Wattage is the wrong starting point. The number that actually sizes a high bay is mounting height, because it dictates the lumen package and beam angle that put usable light on the floor. Start with the height of your ceiling or structure, read across, and the wattage takes care of itself.

Mounting HeightLumen PackageTypical WattageBeam Angle
15 to 20 ft12,000 to 18,000 lm80 to 120W120 degrees
20 to 25 ft18,000 to 27,000 lm120 to 180W90 to 120 degrees
25 to 30 ft27,000 to 36,000 lm180 to 240W90 degrees
30 to 40 ft36,000 to 60,000 lm240 to 400W60 to 90 degrees

Wattages assume the 130 to 160 lumens per watt efficacy that current commercial-grade fixtures deliver. For spacing, a ratio of 0.5 to 1 times the mounting height keeps coverage even: fixtures mounted at 25 ft spaced 15 to 25 ft apart, tighter for task areas targeting 30 plus footcandles, wider for general storage at 10 to 20 footcandles. Ceilings under 15 ft belong with LED Low Bay Lights instead.

Frequently Asked Questions About LED High Bay Lights

Divide the floor into a grid using a spacing of roughly 0.5 to 1 times your mounting height: at 25 ft mounting, that means one fixture every 15 to 25 ft each way. Tighter spacing hits task levels of 30 plus footcandles; wider spacing suits bulk storage at 10 to 20 footcandles. For an accurate count on a real floor plan, run a photometric layout before ordering.

A 150W LED high bay is the standard one-for-one replacement for a 400W metal halide, typically delivering 20,000 lumens or more at the floor with better uniformity and none of the warm-up delay. For 1000W metal halide fixtures, look at 300 to 400W LED units. Match the replacement by lumen package and mounting height rather than by the old lamp wattage.

Match the light pattern to the floor plan. UFO high bays cast a round, symmetric pattern that suits open floors, gymnasiums, and staging areas, and they mount easily from a hook or bracket. Linear high bays throw a rectangular pattern that fits aisles and racking, and they drop into the footprint of old fluorescent high bay rows. Most large facilities use both types by zone.

High bay fixtures are designed for mounting heights of 15 ft and up; below that, their concentrated output creates glare and uneven coverage, and a low bay fixture is the right tool. From 15 to 25 ft, wide 120 degree beams cover efficiently. Above 25 ft, move to larger lumen packages with narrower 60 to 90 degree optics so the light reaches the floor instead of scattering.

In aisles, warehouses with intermittent traffic, and back-of-house zones, yes. Occupancy-based high bays idle at a dimmed level and return to full output when motion is detected, which commonly cuts lighting energy by half or more in low-traffic areas. Most commercial-grade high bays offer a plug-in sensor option using the fixture's 0-10V dimming, so the capability adds little cost at order time.

Beam angle works against mounting height. Wide 120 degree distributions suit 15 to 20 ft ceilings where light needs to spread. At 25 to 30 ft, 90 degrees concentrates output enough to arrive at the floor at useful levels. Above 30 ft, 60 to 90 degree optics prevent the beam from dissipating before it reaches the work plane. Aisle optics are the special case, throwing a narrow rectangle down racking slots.

5000K is the most common choice for warehouses and production floors; its cool white light maximizes contrast and alertness in work areas. 4000K reads slightly warmer and is often chosen for retail backrooms, gyms, and mixed-use spaces. Both perform identically for energy; the choice is visual comfort. Keep one CCT consistent across a space, since mixed temperatures side by side look like a maintenance error.