1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your GT-Lite 2x2 Feet LED Flat Panel Light. This product is designed for both flush mount and drop ceiling installations, offering versatile lighting solutions for various indoor environments such as bedrooms, kitchens, living rooms, laundry rooms, restrooms, offices, dining rooms, warehouses, and garages.
Please read this manual thoroughly before installation and use to ensure proper function and safety.
2. Safety Information
- WARNING: Risk of electric shock. Disconnect power at the fuse or circuit breaker before installation or servicing.
- Installation must be performed by a qualified electrician in accordance with all national and local electrical codes.
- Do not install this fixture in wet locations. Suitable for indoor use only.
- Ensure the supply voltage is compatible with the fixture (120 Volts).
- Do not attempt to modify the fixture. Any modifications may void the warranty and create a safety hazard.
- Handle the product with care to avoid damage to the light panel or frame.
3. Product Features
- 5 CCT Adjustable: Equipped with 5 color temperatures (2700K-6500K) including Warm White, Soft White, Neutral Light, Daylight, and Cool White.
- 3 Level Dimming: Adjustable brightness settings for customized illumination.
- High CRI 90: Enhances color accuracy for a more natural and visually appealing environment.
- 4200 Lumen High Performance: Superior upgraded SMD LEDs provide super bright illumination with approximately 90% energy savings.
- Flicker-Free Technology: Prevents invisible flickering that can lead to headaches and eye fatigue.
- Durable Construction: High-quality aluminum housing and integrated sealed structure ensure longevity and prevent shadows or black spots.
- Versatile Installation: Supports both flush mounting and drop ceiling installation.

Figure 3.1: Key Features Overview.

Figure 3.2: Advanced Lighting Capabilities.
4. Components Included
The package includes the following items:
- GT-Lite 2x2 Feet LED Flat Panel Light (2 units)
- Instruction Manual (this document)
- Mounting Hardware for Flush Mount and Drop Ceiling Installation

Figure 4.1: Two GT-Lite LED Flat Panel Lights.
5. Setup & Installation
Before beginning installation, ensure the power supply is disconnected at the circuit breaker to prevent electric shock.
5.1. Pre-Installation Steps
- Unpack the LED flat panel light and inspect for any damage.
- Identify the desired color temperature (CCT) and brightness level using the switches on the side of the fixture before installation. Refer to Section 6 for details.
- Gather necessary tools: screwdriver, wire strippers, drill (for flush mount), safety glasses, and gloves.
Video 5.1: Unboxing and Initial Setup of the GT-Lite LED Flat Panel. This video demonstrates the initial unboxing of the product and highlights the adjustable color temperature and brightness switches located on the side of the panel. It also shows the simple wiring process.
5.2. Flush Mounting Installation
- Attach the mounting bracket to the ceiling junction box using the provided screws. Ensure the bracket is securely fastened to a structural element.
- Connect the electrical wires: black to black (live), white to white (neutral), and green/bare copper to green (ground). Use wire nuts to secure connections.
- Carefully tuck the wires into the junction box.
- Align the LED panel with the mounting bracket and secure it by twisting or sliding it into place, depending on the bracket design.

Figure 5.1: Installation Process.
5.3. Drop Ceiling Installation
- Remove an existing 2x2 feet ceiling tile from the grid.
- Connect the electrical wires from the ceiling to the LED panel: black to black (live), white to white (neutral), and green/bare copper to green (ground). Use wire nuts to secure connections.
- Carefully place the LED panel into the ceiling grid, ensuring it sits flush and is supported by the grid.
- Secure the panel to the grid using the provided clips or safety wires, if applicable, to prevent accidental dislodgement.
Video 5.2: 2x2 Feet Black LED Flat Panel Installation. This video illustrates the installation process for both flush mount and drop ceiling applications, demonstrating how to secure the panel and connect the wiring.
6. Operating Instructions
6.1. Adjusting Color Temperature (CCT)
The GT-Lite LED Flat Panel Light features 5 selectable color temperatures. Before installation, locate the CCT switch on the side of the fixture. Slide the switch to select your desired color temperature:
- 2700K: Warm White (Yellow warm and soft)
- 3000K: Soft White
- 3500K: Neutral Light
- 4000K: Daylight
- 6500K: Cool White (Ultra-bright white)

Figure 6.1: 5 Color Temperatures Optional.
6.2. Adjusting Brightness (Dimming)
The fixture offers 3 levels of brightness adjustment. Locate the brightness switch on the side of the fixture. Slide the switch to select the desired wattage/brightness level (e.g., 45W, 34W, 23W). This setting should also be made prior to installation.
The light output is also dimmable when paired with compatible dimmer switches (sold separately). Ensure your dimmer switch is compatible with LED fixtures.

Figure 6.2: Dimmable Light Output.
7. Maintenance
- Cleaning: Disconnect power before cleaning. Use a soft, dry, or slightly damp cloth to wipe the surface of the fixture. Do not use abrasive cleaners or solvents.
- Bulb Replacement: This fixture uses integrated LED components and does not require bulb replacement.
- 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.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Light does not turn on. | No power supply; Loose wiring; Faulty switch. | Check circuit breaker. Ensure all wire connections are secure. Test the switch. |
| Light flickers. | Incompatible dimmer switch; Loose wiring. | Ensure dimmer is LED compatible. Check wire connections. |
| Incorrect color temperature or brightness. | CCT/Brightness switch set incorrectly. | Adjust the CCT and brightness switches on the fixture. |
If the problem persists after attempting these solutions, please contact customer support.
9. Specifications
| Feature | Detail |
|---|---|
| Brand | GT-Lite |
| Model Number | GT-F22B-2PK |
| Color | Black |
| Material | Aluminum, Polycarbonate |
| Style | Modern |
| Light Source | LED |
| Voltage | 120 Volts |
| Wattage | 45 watts (Adjustable) |
| Brightness | 4200 Lumen (Adjustable) |
| Color Temperature | 2700K-6500K (5 CCT Adjustable) |
| CRI | 90 |
| Control Method | Touch (via switches on fixture) |
| Mounting Type | Ceiling Mount (Flush Mount, Drop Ceiling) |
| Indoor/Outdoor Usage | Indoor |
| Item Dimensions (L x W x H) | 23.75"L x 23.75"W x 1.25"H |
| Number of Items | 2 |

Figure 9.1: Product Dimensions and Components.
10. Warranty and Support
This GT-Lite LED Flat Panel Light comes with a 1-year manufacturer's limited warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use.
The warranty does not cover damage caused by improper installation, misuse, abuse, accidents, unauthorized repairs, or modifications.
For warranty claims or technical support, please contact GT-Lite customer service. Please have your model number (GT-F22B-2PK) and proof of purchase available.