RAB ALED 78W-90W-150W Type IV 5000K With Slipfitter WS Sensor 20 Foot Lens Bronze (ALEDM4TSF/WS2)

This medium-frame ALED area light slips over a 2-3/8 inch horizontal tenon and locks in place with stainless steel hardware, delivering up to 19,204 lumens of Type IV asymmetric distribution across parking lots, service drives, and building perimeters. The bronze die-cast aluminum head rotates in 5-degree increments for precise aim once the pole is set, and field-adjustable output steps between 150W, 90W, and 78W in three discrete positions so a single SKU covers a wide range of pole heights and coverage targets.

The 5000K cool white output at 85 CRI pairs with a Type IV distribution that was designed for side-of-building and perimeter mounting: the semicircular pattern throws even lateral coverage from 90° to 270° and pushes light out to the edge of the property line rather than wasting it behind the pole. A factory-installed WattStopper occupancy sensor with a 20-foot mounting-height lens covers a 180° field of view, dimming or switching the fixture automatically based on detected motion to cut off-hours energy while keeping the site lit when people or vehicles arrive.

Features

• Wattage: Field-adjustable 150W / 90W / 78W in three discrete steps (150W factory default), equivalent to a 400W metal halide fixture
• Lumen Output: 19,204 / 12,625 / 10,610 lumens at 150W / 90W / 78W (up to 141.1 lumens per watt)
• Color: 5000K cool white, 85 CRI, 7-step MacAdam Ellipse binning for fixture-to-fixture consistency
• Distribution: Type IV asymmetric, purpose-built for perimeter and side-of-building mounting
• Voltage & Dimming: 120-277V multi-tap, 0-10V dimming down to 10%
• Housing: Die-cast aluminum with bronze finish, polycarbonate lens, high-temperature silicone gaskets
• Ingress Protection: IP66 rated for dust and water ingress
• Mount: 2-3/8 inch slipfitter with stainless steel hardware, rotates in 5-degree increments for precise aim
• Rated Life: 100,000 hours L70 (based on IES LM-80 results and TM-21 calculations)
• Cold Start: Reliable starting down to -40°F (-40°C)
• Surge Protection: 10 kV line-to-line, 6 kV line-to-ground
• Vibration Rating: 3G per ANSI C136.31 (suitable for bridge and overpass applications)
• Motion Sensor: Factory-installed WattStopper occupancy sensor, 180° detection field, 20-foot mounting-height lens, vandal- and weather-sealed (configurable with the WSREM handheld wireless tool, sold separately)

Ideal For: Parking Lots • Service Drives • Loading Zones • Building Perimeters • Commercial Campuses • Industrial Sites

UL Listed for wet locations, IP66 rated for dust and water ingress. Fits a standard 2-3/8 inch horizontal tenon. The 0-10V dimming driver requires a separate DC dimming circuit.