Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your OSRAM HCI-TC 70W/830 WDL G8.5 Metal Halide Lamp. Please read these instructions carefully before use and retain them for future reference.
The OSRAM HCI-TC 70W/830 WDL G8.5 is a high-performance metal halide lamp featuring POWERBALL ceramic technology and UV filter technology, designed for outdoor use. It provides a warm white light (830 WDL) with a high color rendering index, making it suitable for various lighting applications.
Important Safety Information
- Risk of Electric Shock: Installation and maintenance should only be performed by a qualified electrician. Ensure power is disconnected before handling the lamp.
- Risk of Burns: Lamps operate at high temperatures. Allow the lamp to cool completely before handling.
- UV Radiation: This lamp features UV filter technology, but prolonged direct exposure to light from any high-intensity discharge lamp should be avoided.
- Lamp Rupture: Operate lamps only in suitable enclosed luminaires to contain hot particles in case of lamp rupture.
- Ballast Compatibility: Use only with appropriate electronic or magnetic ballasts designed for metal halide lamps of this wattage and type. Incompatible ballasts can lead to lamp failure or safety hazards.
- Disposal: Dispose of lamps according to local regulations, as they may contain mercury.
Setup and Installation
Pre-Installation Checks
- Verify that the luminaire and ballast are compatible with a 70W G8.5 metal halide lamp.
- Ensure the power supply is disconnected at the circuit breaker before beginning installation.
- Inspect the lamp for any visible damage. Do not install a damaged lamp.
Installation Steps
- Ensure the luminaire is clean and free from debris.
- Carefully insert the G8.5 base of the lamp into the lamp holder. Ensure it is seated firmly and correctly. Do not force the lamp.
- Close the luminaire cover securely.
- Restore power to the circuit.

Image: The OSRAM HCI-TC 70W/830 WDL G8.5 metal halide lamp, showing its compact design and G8.5 base. This lamp is designed for high-intensity discharge lighting applications.
Note: Always handle the lamp by its base to avoid touching the glass envelope, as oils from skin can reduce lamp life.
Operating Instructions
- Initial Ignition: Upon first ignition or after a power interruption, the lamp will require a short warm-up period to reach full brightness and stable color.
- Warm-up Time: The lamp typically reaches full light output within 2-5 minutes after ignition.
- Re-strike Time: If the lamp is switched off, it requires a cooling period before it can be re-ignited. This re-strike time is typically 5-15 minutes, depending on ambient temperature and ballast type. Attempting to re-ignite too soon can damage the lamp or ballast.
- Operating Position: The lamp is designed for operation in any position (h90), but refer to your luminaire's instructions for specific requirements.
Maintenance
Cleaning
Ensure the lamp is cool and power is disconnected before cleaning. Gently wipe the outer glass envelope with a clean, dry, lint-free cloth. Do not use abrasive cleaners or liquids that could leave residues or damage the lamp.
Lamp Replacement
Replace the lamp when it reaches the end of its rated average lifespan or if it exhibits signs of failure (e.g., flickering, reduced light output, failure to ignite). Always replace with an OSRAM HCI-TC 70W/830 WDL G8.5 lamp or an equivalent approved by OSRAM.
- Disconnect power to the luminaire.
- Allow the lamp to cool completely.
- Open the luminaire and carefully remove the old lamp by gently pulling it straight out from the G8.5 socket.
- Install the new lamp as described in the "Installation Steps" section.
Disposal
Metal halide lamps contain small amounts of mercury and other materials that require special disposal. Do not dispose of lamps in general household waste. Contact your local waste management authority for proper recycling or disposal instructions.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Lamp does not ignite. | No power supply; incorrect wiring; faulty lamp; faulty ballast; lamp not seated correctly. | Check power supply and circuit breaker. Verify wiring. Re-seat lamp. Test with a known good lamp or ballast (if safe to do so). Consult a qualified electrician. |
| Lamp flickers or cycles on/off. | End of lamp life; incorrect ballast; unstable power supply; overheating luminaire. | Replace lamp. Ensure ballast is compatible. Check power supply stability. Ensure proper ventilation for the luminaire. |
| Reduced light output. | End of lamp life; dirty lamp or luminaire reflector; incorrect ballast. | Replace lamp. Clean lamp and luminaire. Verify ballast compatibility. |
| Lamp takes too long to re-ignite. | Insufficient cooling time; faulty ignitor/ballast. | Allow adequate cooling time (5-15 minutes). Consult a qualified electrician to check ignitor/ballast. |
Specifications
| Brand | OSRAM |
| Model Number | HCI-TC 70W/830 WDL G8.5 (Internal: 4008321681799, 999017835046) |
| Light Type | Metal Halide |
| Wattage | 70 Watts |
| Voltage | 96 Volts |
| Light Color | Warm White (830 WDL) |
| Color Rendering Index (CRI) | 89 |
| Indoor/Outdoor Usage | Outdoor |
| Material Type | Ceramic, Metal |
| Base Type | G8.5 |
| Average Lifespan | 15,000 hours (with electronic ballast); 12,000 hours (with magnetic ballast) |
| Item Weight | 9 Grams |
Warranty Information
OSRAM products are manufactured to high quality standards. For specific warranty terms and conditions applicable to your region and product, please refer to the official OSRAM website or contact OSRAM customer service. Keep your proof of purchase for warranty claims.
Customer Support
If you have any questions, require technical assistance, or need further support regarding your OSRAM HCI-TC 70W/830 WDL G8.5 Metal Halide Lamp, please visit the official OSRAM website or contact their customer service department. Contact information can typically be found on the OSRAM website or product packaging.
OSRAM Official Website: www.osram.com