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The Atlas Lighting SlimPak Pro Series Small LED Wall Pack (Part #WSPSS1-4L) brings a slim, low-profile design and refined architectural styling to commercial and industrial outdoor lighting. With selectable wattages of 9, 20, 30, or 36 watts and field-adjustable color temperatures of 4000K, 4500K, or 5000K, this fixture offers the flexibility contractors need to match output to the application — all from a single stocked SKU.
Installation is straightforward thanks to a labor-saving hinged face frame with a built-in bubble level that simplifies mounting and alignment. The fixture is hinged at the bottom to prevent water ingress, and apertures are provided for field or factory installed photocontrol. The zero-glare optical design directs light forward and downward, producing a smooth, uniform ground-level light pattern without wasting lumens or creating offensive spill light.
Atlas engineered the SlimPak Pro as a complete thermal system, using proprietary thermal stacking heat removal technology to extract heat from within the housing and move it away from the LEDs and components. The result is cooler operating temperatures, higher light output, and a rated lifespan exceeding 200,000 hours. Output ranges from 911 to 4,047 lumens at up to 125 LPW with 80 CRI, and the fixture is capable of replacing up to 175W metal halide. It operates on 120–277V with 0–10V dimming, is certified to UL/cUL Standards for Wet Locations, DLC Listed, BAA Compliant, and cULus certified. Made in the USA. Backed by a 5-year warranty.
| Manufacturer | Atlas Lighting |
| MPN | WSPSS1-4L |
| SKU | WSPSS1-4L |
| UPC | 765364043369 |
| DLC Product ID | S-NHE37B |
| Lighting Technology | LED |
| Wattage | 9/20/30/36 Watts |
| Voltage | 120-277V |
| Color Temperature (Kelvin) | 4000K/4500K/5000K |
| Lumens | 911-4,047 Lumens |
| Efficiency (Lumens Per Watt) | Up to 125 LPW |
| Dimmable | Yes, 0-10V |
| CRI (Color Rendering Index) | 80 CRI |
| Finish Color | Bronze |
| Housing | Die-cast Aluminum |
| Metal Halide Equivalent | 175 Watts |
| Dimensions | 6.00" L x 4.00" W x 7.65" H |
| Bug Rating | B1-U0-G1 |
| Environment | Outdoor, Wet Location Rated |
| Certifications | cULus, BAA Compliant, DLC Listed, Made In USA |
| Warranty | 5 Years |
| Wattage | 9 Watts | ||
| Color Temperature (Kelvin) | 4000K Cool White | 4500K Cool White | 5000K Daylight |
| Lumens | 911 Lumens | 966 Lumens | 921 Lumens |
| Efficiency (Lumens Per Watt) | 105 LPW | 111 LPW | 106 LPW |
| Wattage | 20 Watts | ||
| Color Temperature (Kelvin) | 4000K Cool White | 4500K Cool White | 5000K Daylight |
| Lumens | 2,312 Lumens | 2,451 Lumens | 2,337 Lumens |
| Efficiency (Lumens Per Watt) | 118 LPW | 125 LPW | 119 LPW |
| Wattage | 30 Watts | ||
| Color Temperature (Kelvin) | 4000K Cool White | 4500K Cool White | 5000K Daylight |
| Lumens | 3,473 Lumens | 3,683 Lumens | 3,510 Lumens |
| Efficiency (Lumens Per Watt) | 115 LPW | 122 LPW | 117 LPW |
| Wattage | 36 Watts | ||
| Color Temperature (Kelvin) | 4000K Cool White | 4500K Cool White | 5000K Daylight |
| Lumens | 4,047 Lumens | 4,291 Lumens | 4,090 Lumens |
| Efficiency (Lumens Per Watt) | 112 LPW | 124 LPW | 113 LPW |
Green Electrical Supply is here to help you maximize your green® on all your electrical supply purchases.
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