Built for the realities of industrial ceilingsThe LED-8132M40CD belongs to Light Efficient Design's 8130 / 8132 / 8136 screw-in high bay retrofit family, available in 90W, 135W and 150W models replacing up to 400W HID. This 135W version uses a
fanless design — no moving parts to clog with dust or fail in a hot ceiling — and dynamic temperature control that manages heat to support a longer, brighter life. Its driver is USA designed and specified, potted for protection against vibration and moisture, and burnt in three times before shipping. The lamp measures 10.0" tall by 8.7" wide, so it drops neatly into standard
round high bay reflectors without fouling the housing.
Light quality that changes how a space feelsAt
4000K, this lamp gives a neutral white that sits between the yellow cast of old metal halide and the cooler 5000K look. It's easy on the eyes over a full shift, renders safety markings and colour-coded parts accurately thanks to
80+ CRI, and unlike HID it reaches full output instantly — no five-minute warm-up, no restrike delay after a power blip. Output holds at
18 600 lumens for a
50 000-hour L70 rated life, so maintenance trips with a scissor lift become a rare event instead of an annual ritual.
Technical specificationsSKU: LED-8132M40CD
Brand: Light Efficient Design
Wattage: 135W
Replaces: up to 400W HID
Lumens: 18 600
Colour temperature: 4000K
CRI: 80+
Base: EX39 mogul
Voltage: 347V
Dimming: continuous to 20% with a wired 0-10V circuit
Auxiliary power: 12V for sensors
Rated life: 50 000 hrs (L70)
Operating temperature: -40°F to 122°F
Surge protection: dual-stage MOV with integrated 10kA surge
Fixture type: open rated fixtures
Dimensions: 10.0" x 8.7"
UPC: 844006079987
DLC code: S-DVYZK6
Installation and compatibilityInstallation is straightforward: cut power, remove the existing HID lamp, bypass or remove the old ballast as required, and thread the retrofit into the
EX39 mogul socket. Because this is a "D" model, run a wired
0-10V dimming circuit to the lamp if you want continuous dimming to 20% or want to drive it from an occupancy sensor powered by the built-in 12V auxiliary output — a smart combo for aisles and storage bays that sit empty most of the day. Remember that this lamp is approved for
open fixtures only: reflectors with no lens or glass enclosure. It is engineered to work in damp environments and is protected against insects and dust, and the 10kA surge protection is welcome on industrial feeders that see motor loads and switching spikes. Work must respect the Canadian Electrical Code and local rules.
Where it earns its keep, and the rest of the familyWarehouses, distribution docks, machine shops, municipal and transit garages, arenas, agricultural buildings and retail stockrooms all benefit: instant-on light, quiet operation and a big drop in connected load compared with a 400W HID system that also burned ballast watts. Within the same family you can mix outputs to suit ceiling heights — the
90W high bay retrofit replacing 250W HID for lower bays, the
150W 4000K high bay retrofit for taller ones, or the
135W 5000K version if you prefer a crisper white. For exterior areas, the same brand offers shoe box and wall pack retrofits such as the
110W shoe box / wall pack retrofit. Full details, part numbers and DLC codes are in the technical PDF in the Documentation tab.