Energy Reduction

With Motion Dimming

LED Fixture Mix

NextGen III Per Pole

Church Parking Lot LED Retrofit — Our Lady of Fatima Church

Our Lady of Fatima Church in San Clemente, California contacted us for a complete LED lighting retrofit of their parking lot and building areas. The church had aging 250-watt metal halide fixtures that left dark areas and used more energy than the LED retrofit target.

Before — Our Lady of Fatima Church parking lot with old 250W metal halide fixtures

Before Installation — Challenges

  • Eight pole-mounted 250-watt metal halide fixtures
  • Poor visibility, particularly at rear building entrance
  • High energy consumption
  • Dark areas creating visibility concerns

Solution Implemented

We designed a comprehensive solution combining multiple lighting strategies:

  • Eight 150-watt NextGen III LED lights with motion sensors — Mounted on existing poles to replace the old metal halides
  • Two 300-watt LED fixtures — Mounted on building without motion sensors for continuous illumination
  • Two solar lights — Added for rear building area for further energy savings

Key Takeaway: The combination of pole-mounted NextGen III fixtures with motion sensors, building-mounted continuous fixtures, and solar lights for remote areas demonstrates a layered approach that maximizes both coverage and energy efficiency.

New LED parking lot lights installed at Our Lady of Fatima Church New LED parking lot lights with motion sensors installed at church LED parking lot light with motion sensor — close-up of fixture

Motion Sensor Configuration

The motion sensor strategy maximizes energy savings:

  • 30% brightness when no motion detected (idle state)
  • 70% brightness when motion is detected (active state)
  • Automatic dimming reduces energy consumption significantly during low-activity periods
Motion sensor parking lot light close-up showing sensor detail Motion sensor parking lot light arm mount installation detail LED parking lot light with motion sensor — installed on pole

What to Review Before a Similar Retrofit

For a parking lot retrofit like this, start with the current fixture wattage, pole height, mounting style, voltage, and the areas where people feel unsafe or visibility drops. Those details help determine whether the project should reuse poles, add wall-mounted fixtures, use motion sensors, or add solar lighting where trenching power is expensive.

The lesson from this church project is that the right layout is rarely one fixture type everywhere. Pole lights handled the main parking area, building-mounted fixtures supported the entrances, motion sensors reduced wasted energy, and solar lights solved a rear-area power problem.

Energy Results

The retrofit achieved impressive energy savings:

  • 60% reduction in energy consumption at full brightness
  • Up to 80% reduction with motion sensor dimming capabilities enabled

Key Takeaway: Motion sensor dimming can improve savings beyond full-bright operation; the 30%/70% idle/active configuration provides baseline visibility while reducing runtime at full output during quiet parking lot hours.

New LED parking lot lights showing clear uniform coverage — not too bright LED parking lot light with motion sensor — above view of installation

Professional Resources and Layout Review

  • Photometric study conducted to forecast light distribution and coverage
  • Aerial drone footage documenting before and after installation
  • Video includes footcandle readings and motion sensor range demonstration
  • Coverage analysis shows improved uniformity and visibility

This installation demonstrates practical LED conversion methodology for commercial parking lot applications with energy optimization through smart motion-sensing technology.

LED motion sensor wall light installed on church building Church with new LED wall lights at dusk — Our Lady of Fatima LED parking lot light with motion sensor — completed installation

Solar Parking Lot Lights — Rear Building Installation

In addition to the LED pole lights and wall packs, two solar parking lot lights were installed at the rear building entrance where running electrical would have been costly. The Everan solar street lights provide off-grid illumination without a fixture-level utility connection — charging during the day and lighting automatically at dusk.

Everan solar street light installed at rear of church building Solar parking lot light installed — daytime view of pole-mounted fixture Solar parking lot lights installed — second angle showing solar panel

Project FAQs

What made this parking lot lighting upgrade work?

The project matched LED fixture output, optics, mounting height, and motion sensor behavior to the church parking lot layout instead of choosing lights by wattage alone.

When should a parking lot use motion sensors?

Motion sensors are useful when traffic varies by time of day. They can reduce energy use while keeping a higher light level when vehicles or pedestrians enter the area.

What should I gather before planning a similar parking lot retrofit?

Collect pole heights, existing fixture wattage, lot dimensions, voltage, photos, target light levels, and any dark spots. A light study can help review fixture count and coverage before purchase.

More Case Studies & Guides

About the Author

Dara Greaney

Dara Greaney

Dara Greaney is the President and founder of LED Light Expert. With over a decade of hands-on experience in commercial and industrial LED lighting, Dara has personally guided parking lot and commercial outdoor lighting installations across the country — helping businesses reduce energy use while improving visibility with better-planned LED layouts.

Editing by David Peguero.

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