1. Introduction
This manual provides instructions for the installation, operation, and maintenance of the Lithonia Lighting BGR ALO SWW2 MVOLT PER DNA M2 (Gray) and BGS P1 40K 120 PE DDB M2 (Dark Bronze) Outdoor LED Security Lights. These fixtures are designed for illuminating large outdoor areas such as yards, farms, pathways, and doorways, offering energy-efficient lighting with integrated photocells for automatic dusk-to-dawn operation.
The BGR ALO SWW2 MVOLT PER DNA M2 model features Adjustable Lumen Output (ALO) and Switchable White (SWW) technology, allowing customization of brightness and color temperature. The BGS P1 40K 120 PE DDB M2 model provides reliable 4000K illumination with an adjustable photocell.
2. Safety Information
- Always turn off power at the circuit breaker before installation or servicing.
- Installation should be performed by a qualified electrician in accordance with all local electrical codes.
- Ensure all connections are secure and properly insulated.
- Do not operate the fixture with damaged wiring or components.
- Wear appropriate safety gear, including gloves and eye protection, during installation.
3. Setup and Installation
Both models are designed for easy installation on an existing mast arm, directly to a wall, or a wooden pole. Refer to the specific wiring diagrams included with your product for detailed electrical connections.
3.1 Mounting the Fixture
- Select a suitable mounting location that provides adequate illumination and allows for proper wiring.
- Securely attach the mounting arm or bracket to the desired surface (wall, pole, or mast arm) using appropriate hardware (not included).
- Ensure the fixture is level and securely fastened to prevent movement.
3.2 Electrical Connection
- Connect the fixture's wiring to the main power supply according to local electrical codes.
- Ensure proper grounding for safety.
- For the BGR model, it is MVOLT (Multi-Volt) compatible, accepting various voltage inputs.
3.3 Photocell Installation/Adjustment
Both models include a photocell for dusk-to-dawn operation. Ensure the photocell is unobstructed and not exposed to artificial light sources that could interfere with its function.
- BGR Model: Features a traditional twist-lock photocell. Install it into the receptacle on the fixture.
- BGS Model: Features an adjustable photocell. Position it to optimize dusk-to-dawn sensing.

Image: Lithonia Lighting BGR ALO SWW2 MVOLT PER DNA M2 Outdoor LED Security Light in Gray. This image shows the gray security light with its integrated photocell on top and mounting arm.

Image: Lithonia Lighting BGS P1 40K 120 PE DDB M2 Outdoor LED Security Light in Dark Bronze. This image displays the dark bronze security light with its integrated photocell and mounting arm.
4. Operating Instructions
Once installed and powered, the security lights will operate automatically based on ambient light conditions.
4.1 Automatic Dusk-to-Dawn Operation
The integrated photocell detects ambient light levels. The fixture will automatically turn on at dusk and turn off at dawn, providing continuous illumination during nighttime hours.

Image: Lithonia Lighting BGS P1 LED Security Light highlighting the adjustable dusk-to-dawn photocell. This image shows the top view of the dark bronze light with the photocell clearly visible.
4.2 BGR Model: Adjustable Lumen Output (ALO) and Switchable White (SWW)
The BGR ALO SWW2 MVOLT PER DNA M2 model allows for customization of light output and color temperature. Switches located on the fixture enable these adjustments.
- Adjustable Lumen Output (ALO): Select between Low, Medium, or High brightness settings to suit your illumination needs.
- Switchable White (SWW): Choose from 3000K (Warm White), 4000K (Cool White), or 5000K (Daylight) color temperatures.
Adjust these settings before final installation or during initial setup to achieve the desired lighting effect.

Image: Lithonia Lighting BGR LED Security Light showing the options for Switchable Color Temperatures (3000K, 4000K, 5000K) and Adjustable Lumen Output (Low, Medium, High). The image highlights the switches on the fixture for these adjustments.
5. Maintenance
These LED security lights are designed for long-term, low-maintenance operation.
- Cleaning: Periodically clean the exterior of the fixture and the lens with a soft, damp cloth to remove dirt, dust, and debris. Do not use abrasive cleaners, solvents, or high-pressure water, as these can damage the finish or internal components.
- Lamp Replacement: The integrated LEDs are long-life and do not require lamp replacement. Do not attempt to open the sealed LED compartment.
- Inspection: Annually inspect the mounting hardware and electrical connections for any signs of wear, corrosion, or loosening. Tighten as necessary.
6. Troubleshooting
If you encounter issues with your security light, refer to the following troubleshooting steps:
- Light does not turn on:
- Check the circuit breaker to ensure power is supplied to the fixture.
- Verify all electrical connections are secure.
- Ensure the photocell is not obstructed by debris, paint, or other objects.
- Confirm it is dark enough for the photocell to activate.
- Light stays on during daylight:
- Check if the photocell is exposed to artificial light sources (e.g., another light fixture, street light) that might prevent it from sensing daylight.
- Ensure the photocell is clean and free from obstructions.
- For the BGS model, adjust the photocell's position if necessary.
- Light flickers or dims:
- Check for loose wiring connections.
- Ensure the power supply is stable and within the fixture's specified voltage range.
If these steps do not resolve the issue, contact a qualified electrician or Lithonia Lighting customer support.
7. Specifications
| Feature | BGR ALO SWW2 MVOLT PER DNA M2 | BGS P1 40K 120 PE DDB M2 |
|---|---|---|
| Brand | Lithonia Lighting | |
| Model Number | BGR ALO SWW2 MVOLT PER DNA M2 | BGS P1 40K 120 PE DDB M2 |
| Light Source | LED | |
| Brightness (Max) | 10,000 lumens | Up to 150W Metal Halide Equivalent |
| Color Temperature | Switchable (3000K, 4000K, 5000K) | 4000K |
| Control Method | Photocell (Dusk-to-Dawn) | |
| Material | Bronze, Metal, Polycarbonate, Wood | Bronze, Metal, Polycarbonate, Wood |
| Lens Material | Polycarbonate | Impact-resistant Polycarbonate |
| Mounting Type | Wall Mount, Pole Mount, Mast Arm | |
| Water Resistance Level | Water Resistant | Water Resistant (IP65 rated) |
| Ratings | UL listed for wet locations, DLC Premium | UL listed for wet locations, IP65 rated, Energy Star |
8. Warranty and Support
Both Lithonia Lighting BGR and BGS LED Security Lights come with a 5-Year Limited Warranty. For warranty claims or technical support, please refer to the contact information provided with your purchase or visit the official Lithonia Lighting website.







