LED Semi Cutoff Wall Packs

What are Semi-cutoff LED Wall Pack Lights?

Semi-cutoff LED wall pack lights provide balanced outdoor illumination between full cutoff and wide-throw fixtures. These mount directly to building exteriors and distribute light both downward and outward, typically creating 120-degree beam patterns (model dependent) that cover substantial ground while limiting upward light spill.

This controlled distribution is effective for building perimeters, walkways, and parking zones where security coverage is needed without excessive glare or light trespass onto neighboring properties.

How to Determine Semi-Cutoff LED Wall Pack Lighting is the Best Choice

Choosing semi-cutoff fixtures depends on your lighting goals and site conditions. We recommend these when broader coverage than full cutoff is needed, but dark-sky considerations still matter.

Mounting height affects performance. Installations between 12-20 feet typically optimize the light throw these fixtures are designed for, depending on site specifics.

• Coverage requirements: Semi-cutoff patterns are ideal for illuminating areas 25-40 feet from the building face while maintaining vertical illumination on the wall.
• Existing infrastructure: Upgrading from 150W to 400W metal halide or high-pressure sodium usually allows for 30W to 80W LED semi-cutoff replacements with equal or better results when properly specified.
• Municipal compliance: Where full cutoff is not required but light pollution is a concern, semi-cutoff fixtures reduce upward light emission by about 60% compared to traditional wall packs, subject to local rules.
• Multi-zone applications: Properties needing both pedestrian lighting and broader security coverage benefit from the versatile distribution.

Also consider color temperature (3000K to 5000K), dimming, and sensor integration. Our lighting design team can create photometric plans to help with fixture selection and spacing.

Dark Sky Compliant Semi-Cutoff Wall Packs

Our semi-cutoff wall pack fixtures reduce light pollution while maintaining effective ground-level illumination. The optical design limits upward light emission to less than 5% of total fixture output, helping properties meet many municipal dark-sky ordinances without sacrificing security or visibility.

For stricter full cutoff requirements, we offer complete cutoff wall packs with zero upward light emission. These direct all output below horizontal, providing maximum dark-sky compliance for sensitive locations near airports, observatories, or protected zones.

How to Calculate How Many Semi-Cutoff Wall Pack Lights You Need

Fixture quantity depends on achieving uniform illumination. Most commercial properties require wall pack spacing of 30 to 50 feet to maintain adequate light levels without bright spots or shadows.

We use photometric analysis considering building dimensions, mounting heights, adjacent structures, and required foot-candle levels. Our lighting plans specify fixture locations, wattages, and beam angles tailored to your site and usage needs.

Installing Semi-Cutoff LED Wall Pack Lights

Professional installation usually takes 30-45 minutes per fixture for direct retrofits. After disconnecting power and removing old hardware, the new LED wall pack mounts using the included bracket system for standard electrical box configurations.

Most models accept 120V to 277V input with drivers that auto-adjust to your building's electrical system. Wire connections follow standard practices: line, neutral, and ground. Many fixtures include integral junction boxes for easier installation.

For photocell or occupancy sensor installations, discuss placement and wiring with a licensed electrician during planning to ensure optimal sensor performance.

Safety and Performance Certifications

All our fixtures carry essential certifications: DLC Premium (energy efficiency and rebate eligibility), UL Listed and ETL Listed (electrical safety and product compliance). DLC Premium certification ensures the highest efficiency standards and maximum rebate eligibility.

Warranty and Warranty Support

All our lights include at least a 5-year warranty, with USA-based warranty support. Our experienced support team understands the importance of keeping your lighting operational and will work to resolve warranty issues promptly.

Benefits of LED Semi-Cutoff Wall Pack Lights

Upgrading to LED semi-cutoff wall packs offers measurable improvements over legacy HID systems:

• Immediate Energy Reduction: Achieve 70-80% energy savings with better light quality. A 50W LED can outperform a 250W metal halide and reduce operating costs on multi-fixture installations.
• Extended Service Life: Rated for 50,000+ hour operation with less than 10% lumen depreciation over five years (verify on spec sheet). This reduces frequent lamp and ballast replacements common with HID.
• Reliable Cold Weather Performance: Unlike HID lamps, LED drivers maintain consistent output down to -40F without warm-up delays or reduced efficiency.
• Smart Integration Ready: Factory-installed 0-10V dimming and occupancy sensors enable automated operation to further reduce energy use during low-activity periods.

LED Semi Cutoff Wall Packs Frequently Asked Questions

What are semi-cutoff LED wall pack lights?

Semi-cutoff LED wall packs mount to building exteriors and distribute light both downward and outward, creating 120-degree beam patterns (model dependent) that cover ground area while controlling upward light spill for building perimeters, walkways, and parking zones.

How do I know if semi-cutoff wall packs are the right choice?

Semi-cutoff fixtures work best at mounting heights between 12-20 feet when illuminating areas 25-40 feet from the building face. Where light pollution concerns exist but full cutoff is not mandated, these fixtures reduce upward light emission by approximately 60% compared to traditional wall packs, subject to local requirements.

What are the benefits of LED semi-cutoff wall packs over HID?

LED semi-cutoff wall packs achieve 70-80% energy savings - a 50W LED outperforms a 250W metal halide. Fixtures are rated for 50,000+ hour operation and maintain consistent output down to -40F without warm-up delays.

How many semi-cutoff wall packs do I need?

Most commercial properties require wall pack spacing between 30 to 50 feet to maintain adequate light levels. Professional photometric analysis considers building dimensions, mounting heights, and required foot-candle levels to determine precise fixture locations.

Are these wall packs dark sky compliant?

Semi-cutoff wall packs limit upward light emission to less than 5% of total fixture output, helping properties meet many municipal dark-sky ordinances. For stricter requirements, full cutoff wall packs with zero upward light emission are available.

What certifications do these fixtures carry?

Fixtures carry DLC Premium, UL Listed, and ETL Listed approvals, qualifying projects for utility rebates and tax incentives. Additional ratings include IP65 and IK08 impact resistance.

What voltage do semi-cutoff wall packs require?

Most models accept 120V to 277V input with drivers that automatically adjust to your building''s electrical system.

What warranty is included?

All lights include at least a 5-year warranty with USA-based warranty support.