1. Important Safety Instructions
Please read and understand all instructions before installing or operating this fixture. Failure to follow these instructions may result in electric shock, fire, or other hazards that could cause injury or property damage.
- WARNING: Risk of electric shock. Disconnect power at the fuse or circuit breaker before installation or servicing.
- WARNING: Risk of fire. Use only on circuits rated for this fixture.
- This product must be installed in accordance with the applicable installation code by a person familiar with the construction and operation of the product and the hazards involved.
- Ensure all electrical connections are secure and correct.
- Do not install in locations where the operating temperature exceeds the fixture's rated temperature.
- Do not modify the fixture in any way.
- Suitable for damp locations.
2. Package Contents
Verify that all components are present before beginning installation:
- ASD 4ft LED Wraparound Light Fixture (1 unit)
- Mounting Hardware (screws, anchors)
- Instruction Manual
3. Specifications
| Specification | Value |
|---|---|
| Model Number | A-WRL-4A48AC |
| Dimensions (L x W x H) | 47.6" x 5.3" x 2.1" (1210mm x 135mm x 54mm) |
| Wattage | 32W, 40W, 48W (Selectable) |
| Lumen Output | Up to 5583 lm (at 48W) |
| Color Temperature (CCT) | 3500K, 4000K, 5000K (Selectable) |
| Voltage | 120-277V |
| Dimmable | 0-10V Dimming (10%-100%) |
| Material | Metal, PMMA |
| Certifications | UL, DLC Standard |
| Lifespan | Up to 190,000 hours |
| Mounting Type | Flush Mount (Ceiling) |
| Indoor/Outdoor Usage | Indoor (Damp Locations Rated) |

Figure 1: Product dimensions and key features (120-277V, 0-10V dimming, damp locations).
4. Setup and Installation
This fixture is designed for flush mount ceiling installation and operates on 120-277V circuits. Installation should be performed by a qualified electrician or a person familiar with electrical wiring.
4.1 Pre-Installation
- Turn off power: Locate the circuit breaker or fuse box and turn off the power to the area where you will be installing the fixture. Verify power is off using a voltage tester.
- Unpack: Carefully remove the fixture and all components from the packaging. Inspect for any damage.
- Select CCT and Wattage: Before mounting, adjust the color temperature (CCT) and wattage settings using the switches located on the fixture. Refer to Section 5.1 for details.

Figure 2: Switches for color temperature and power selection.
4.2 Mounting the Fixture
- Marking: Hold the fixture against the ceiling in the desired mounting location and mark the positions for the mounting screws.
- Drilling: Drill pilot holes at the marked locations. If mounting into drywall, insert the provided plastic anchors.
- Secure Mounting Plate (if applicable): Some models may have a separate mounting plate. Attach it to the ceiling using the provided screws.
- Wiring: Connect the electrical wires from the ceiling to the fixture's wires according to local electrical codes. Typically:
- Black (Live) to Black (Live)
- White (Neutral) to White (Neutral)
- Green/Bare Copper (Ground) to Green/Bare Copper (Ground)
- Attach Fixture: Carefully align the fixture with the mounting holes or mounting plate and secure it with the provided screws. Ensure the fixture is firmly attached to the ceiling.

Figure 3: Example of the LED fixture installed on a ceiling.
4.3 Post-Installation
- Restore Power: Once installation is complete and all connections are secure, restore power at the circuit breaker.
- Test: Turn on the light switch to verify proper operation.
5. Operating Instructions
The ASD 4ft LED Wraparound Light Fixture offers adjustable color temperature and wattage, along with 0-10V dimming capability.
5.1 Color and Power Selection
The fixture features internal switches to select the desired color temperature (CCT) and wattage. These adjustments should ideally be made before installation, but can be accessed by carefully removing the end caps or diffuser if needed (ensure power is off).
- Color Temperature (CCT): Choose between 3500K (Neutral White), 4000K (Cool White), or 5000K (Daylight) to match your environment's lighting needs.
- Wattage: Select 32W, 40W, or 48W to adjust the brightness and energy consumption. Higher wattage provides more lumens.

Figure 4: Detailed view of color and power selectable switches.
5.2 0-10V Dimming
This fixture is compatible with 0-10V dimmers, allowing for smooth brightness adjustment from 10% to 100%. Ensure your dimmer switch is a modern LED 0-10V compatible model and was correctly wired during installation.
- To dim the light, use the connected 0-10V dimmer switch.
- The dimming range is typically 10% to 100% of the selected wattage.

Figure 5: 0-10V dimming functionality.
6. Maintenance
The LED Wraparound Light Fixture requires minimal maintenance.
- Cleaning: Ensure power is off before cleaning. Use a soft, dry, or slightly damp cloth to wipe the exterior of the fixture. Do not use harsh chemicals, abrasive cleaners, or solvents, as these can damage the finish or lens.
- Inspection: Periodically inspect the fixture for any signs of damage or loose connections. If any issues are found, disconnect power and consult a qualified electrician.
7. Troubleshooting
If you experience issues with your LED fixture, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Light does not turn on. | No power to the fixture. Loose wiring connection. Incorrect CCT/wattage switch setting. | Check circuit breaker/fuse. Verify all wire connections are secure (power off). Ensure CCT/wattage switches are set correctly. |
| Light flickers or dims unexpectedly. | Incompatible dimmer switch. Loose wiring. Voltage fluctuations. | Ensure a 0-10V compatible LED dimmer is used. Check all wiring connections (power off). Consult an electrician to check power supply. |
| Light is too dim or too bright. | Incorrect wattage setting. Dimmer setting too low/high. | Adjust the wattage switch on the fixture (power off). Adjust the 0-10V dimmer to the desired brightness level. |
| Color temperature is not as expected. | Incorrect CCT setting. | Adjust the CCT switch on the fixture (power off). |
If these steps do not resolve the issue, please contact customer support.
8. Warranty Information
ASD provides a 5-year limited warranty for this LED Wraparound Light Fixture. This warranty covers defects in materials and workmanship under normal use and service. The warranty period begins from the date of purchase.
The warranty does not cover damage caused by improper installation, misuse, abuse, accidents, unauthorized repairs or modifications, or acts of nature. For warranty claims, please retain your proof of purchase.
9. Support
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact ASD customer support. Refer to the product packaging or the official ASD website for the most current contact information.
Online Resources: You may find additional information, FAQs, and support documents on the ASD website.