1. Introduction
The Philips Master TL-D 90 Graphica 36W/950 is a high-quality fluorescent lamp designed for applications requiring excellent color rendering. This lamp provides a daylight white light with a high Color Rendering Index (CRI) of 90, making it ideal for environments where accurate color perception is critical. Typical applications include printing facilities, paint shops, retail sales areas, and museums. This manual provides essential information for the safe installation, operation, and maintenance of your lamp.

Figure 1: Philips Master TL-D 90 Graphica 36W/950 Fluorescent Lamp. This image shows the full length of the tubular fluorescent lamp with its G13 pins visible at one end.
2. Safety Information
Please read all safety instructions before installing or operating the lamp. Failure to follow these instructions may result in electric shock, fire, or personal injury.
- Electrical Safety: Always disconnect power to the fixture before installing, removing, or cleaning the lamp. Ensure the fixture is properly grounded.
- Handling: Handle the lamp carefully. Do not drop or subject it to impact. Avoid touching the glass with bare hands, as oils can reduce lamp life.
- Compatibility: Use only with compatible fluorescent lamp fixtures and ballasts (electronic or conventional) designed for T8 lamps with a G13 base.
- Disposal: This lamp contains a small amount of mercury. Dispose of it according to local regulations for hazardous waste. Do not break the lamp.
- Operating Environment: Ensure the lamp is used within its specified operating temperature range.
3. Setup and Installation
Installation should be performed by a qualified electrician or competent person.
- Power Disconnection: Turn off the main power supply to the lighting fixture at the circuit breaker or fuse box.
- Remove Old Lamp (if applicable): Carefully twist the old fluorescent lamp 90 degrees and pull it out of the lampholders.
- Insert New Lamp: Align the two pins on each end of the Philips Master TL-D 90 Graphica lamp with the slots in the lampholders. Gently push the lamp into the lampholders and twist it 90 degrees until it locks securely into place. Ensure both ends are firmly seated.
- Verify Compatibility: Confirm that the fixture's ballast is compatible with a 36W T8 fluorescent lamp. This lamp is designed for operation with both electronic and conventional ballasts.
- Restore Power: Once the lamp is securely installed, restore power to the fixture.

Figure 2: Close-up view of the G13 pins on the fluorescent lamp. This image highlights the bi-pin base used for electrical connection in compatible fixtures.
4. Operating Instructions
Once properly installed, the Philips Master TL-D 90 Graphica 36W/950 lamp operates like any standard fluorescent lamp.
- Switching On/Off: Use the standard wall switch or fixture control to turn the lamp on or off.
- Dimming: This lamp is dimmable. If your fixture and ballast are equipped with dimming capabilities, you can adjust the light output using the appropriate dimmer control. Ensure the dimmer is compatible with fluorescent lamps and the installed ballast.
- Warm-up Time: Fluorescent lamps may require a short warm-up period to reach full brightness and stable color.
5. Maintenance
Regular maintenance ensures optimal performance and longevity of your lamp.
- Cleaning: Before cleaning, always disconnect power. Allow the lamp to cool. Wipe the lamp surface with a soft, dry, lint-free cloth. Do not use abrasive cleaners or solvents.
- Replacement: Replace the lamp when it reaches the end of its useful life (indicated by flickering, dimming, or failure to ignite). Follow the installation steps in Section 3 for replacement.
- Fixture Maintenance: Periodically inspect the lighting fixture, lampholders, and wiring for any signs of wear or damage.
6. Troubleshooting
If the lamp does not operate correctly, refer to the following common issues and solutions:
- Lamp does not light:
- Check if the power supply to the fixture is on.
- Ensure the lamp is correctly seated in the lampholders.
- Verify that the ballast is functioning correctly.
- The lamp may have reached the end of its life and needs replacement.
- Lamp flickers:
- Ensure the lamp is securely installed.
- The ballast may be faulty or incompatible.
- The lamp may be nearing the end of its life.
- Check for loose wiring in the fixture.
- Reduced brightness:
- The lamp may be dirty; clean it as per maintenance instructions.
- The lamp may be nearing the end of its life.
- Ensure the dimmer (if used) is set to maximum brightness.
If troubleshooting steps do not resolve the issue, consult a qualified electrician.
7. Specifications
Detailed technical specifications for the Philips Master TL-D 90 Graphica 36W/950 fluorescent lamp:
| Parameter | Value |
|---|---|
| Model Number | TL-D Gra.36W/950 |
| Power (Rated) | 36 W |
| Lamp Current | 0.440 A |
| Bulb Shape | T8 (Tubular, 26 mm diameter) |
| Base | G13 |
| Color Temperature | 5000 K (Daylight White) |
| Color Rendering Index (CRI) | 90 |
| Luminous Flux (Max) | 2340 Lumen |
| Nominal Lifetime | 15000 Hours |
| Dimmable | Yes |
| Energy Efficiency Class | G |
| Mercury Content | 2 mg |
| Operating Temperature (Nominal) | 25°C |
| Product Dimensions (L x D) | 119.99 x 2.59 cm |
| EAN/UPC | 8711500888648 |

Figure 3: Energy Efficiency Label. This label indicates the lamp's energy class (G) and energy consumption (37 kWh/1000h).
For more details, visit: eprel.ec.europa.eu/qr/423527

Figure 4: Technical Data Sheet. This image displays detailed electrical, mechanical, and photometric data for the lamp, including dimensions and spectral distribution.
8. Warranty and Support
For warranty information and customer support, please refer to the official Philips website or contact your local Philips representative. Keep your purchase receipt as proof of purchase.