1. Introduction
This manual provides instructions for the ARSUK 27-Watt 6500K Daylight Compact Fluorescent Light Bulb, Model ARS-DL215. This bulb is designed for fixtures requiring a CFML27W / GX10Q-4 base and provides 6500K daylight white light, suitable for various task lighting applications.

Image: The ARSUK 27-Watt 6500K Daylight CFL Bulb, showing its quad-tube design.
2. Safety Information
- Always disconnect power to the fixture before installing or removing the bulb.
- Ensure the bulb wattage and base type match the fixture's requirements (27W, GX10Q-4 base).
- Do not use this bulb with dimmers unless the fixture and bulb are specifically rated for dimmable CFLs. This bulb is not dimmable.
- Handle the bulb by its plastic base, not the glass tubes, to prevent breakage.
- If the bulb breaks, follow local guidelines for mercury cleanup and disposal.
- This bulb requires a working electronic ballast in the lamp. It will not operate if the ballast is faulty.
3. Setup and Installation
The ARSUK 27W CFL bulb features an easy plug-in 4-pin design for straightforward replacement.
- Verify Compatibility: Before installation, confirm that your lamp or fixture is designed for a 27W GX10Q-4 4-pin CFL bulb. Check the existing bulb or fixture specifications.
- Disconnect Power: Turn off the power to the lamp or fixture at the switch and, if possible, unplug it from the wall outlet.
- Remove Old Bulb: Carefully grasp the base of the old bulb and pull it straight out from the socket. Avoid twisting the glass tubes.
- Insert New Bulb: Align the four pins of the new ARSUK CFL bulb with the corresponding slots in the GX10Q-4 socket. Gently push the bulb straight into the socket until it is firmly seated. Do not force the bulb.
- Restore Power: Plug in the lamp or restore power to the fixture.
- Test: Turn on the lamp to ensure the new bulb is functioning correctly.
Video: This video demonstrates the installation process for the ARSUK 27W Replacement Fluorescent Light Bulb, showing how to correctly insert the 4-pin base into a compatible lamp fixture.

Image: Close-up view of the ARSUK CFL bulb's 4-pin GX10Q-4 base being inserted into a compatible socket, illustrating the plug-in installation method.

Image: Rear view of the ARSUK 27W CFL bulb, highlighting its 4-pin GX10Q-4 base for proper identification and compatibility.
4. Operation
The ARSUK 27W CFL bulb provides bright, 6500K daylight white illumination, ideal for tasks requiring clear visibility.
- Light Output: Emits 1700 lumens of 6500K daylight white light, designed to reduce eye strain during extended use.
- Power Requirement: Operates on 27 watts and requires a functional electronic ballast within the lamp fixture.
- Applications: Suitable for desk lamps, magnifying lamps, hobby workstations, and reading lights.

Image: The ARSUK 27W CFL bulb installed in a desk lamp, providing bright light for a person engaged in work, demonstrating its use in task lighting.

Image: An infographic detailing key features of the ARSUK GX10Q-4 fluorescent light bulb, including wattage, lumen output, color temperature, and lifespan.
5. Maintenance
The ARSUK 27W CFL bulb is designed for long-lasting performance with minimal maintenance.
- Lifespan: This bulb has an average lifespan of up to 10,000 hours.
- Cleaning: To clean the bulb, ensure the power is off and the bulb is cool. Gently wipe with a dry, soft cloth. Do not use liquid cleaners.
- Replacement: Replace the bulb when its light output significantly diminishes or it ceases to function. Follow the installation steps for replacement.

Image: The ARSUK 27W CFL bulb overlaid with a clock graphic, illustrating its extended lifespan of 10,000 hours compared to incandescent bulbs.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Bulb does not turn on. |
|
|
| Bulb flickers or dims. |
|
|
7. Specifications
| Feature | Detail |
|---|---|
| Brand | ARSUK |
| Model Name | 27w Replacement Fluorescent Bulb (ARS-DL215) |
| Light Type | CFL, Fluorescent |
| Wattage | 27 Watts |
| Bulb Shape Size | T4, 4U / Quad Tube |
| Bulb Base | GX10Q-4 |
| Light Color | Daylight White |
| Color Temperature | 6500 Kelvin (6400 Kelvin listed in some specifications) |
| Brightness | 1700 Lumen |
| Voltage | 230 Volts (Accepted voltage frequency: 100 to 240 Volts) |
| Average Life | 10,000 Hours |
| Product Dimensions | 3.27"W x 5.63"H (approx. 8.3cm W x 14.3cm H) |
| Item Weight | 4.9 ounces (approx. 140 Grams) |
| Material | Lead (internal components) |
| Special Features | Energy Efficient, Eye-Friendly, Lightweight |
| Indoor/Outdoor Usage | Indoor |

Image: Detailed diagram illustrating the dimensions of the ARSUK 27W CFL bulb, including its length, width, and the specific measurements of the GX10Q-4 base pins.

Image: Exploded view diagram of the ARSUK 27W Fluorescent Replacement Bulb, highlighting its tubular shape, glass construction, ABS plastic base, and 4-pin connector.
8. Warranty and Support
For warranty information or technical support regarding your ARSUK 27-Watt 6500K Daylight CFL Bulb, please contact ARSUK customer service directly. Refer to the product packaging or the ARSUK official website for contact details.
Manufacturer: ARSUK




