1. Introduction
This manual provides essential information for the safe and effective installation, operation, and maintenance of your Technical Precision replacement light bulb, model UHI-70DM/UVP, NW/4200K. This product is designed as a direct replacement for the USHIO UHI-70DM/UVP, NW/4200K light bulb. Please read these instructions thoroughly before use and retain them for future reference.
Figure 1: Technical Precision Replacement Bulb. This image shows the compact tubular shape of the high-intensity discharge (HID) bulb, featuring a prong base for secure installation.
2. Safety Information
Always observe the following safety precautions to prevent injury or damage:
- Power Disconnection: Always disconnect power to the fixture before installing, removing, or cleaning the bulb. Failure to do so may result in electric shock.
- Cool Down: Allow the bulb to cool completely before handling. High-intensity discharge (HID) bulbs operate at high temperatures and can cause severe burns if touched while hot.
- Proper Handling: Handle the bulb by its base, not the glass envelope. Oils from skin can create hot spots on the glass, leading to premature failure or shattering.
- Fixture Compatibility: Ensure the fixture is rated for the wattage and type of this bulb (70W Metal Halide). Using an incompatible fixture can lead to overheating or damage.
- Disposal: Dispose of old bulbs according to local regulations. HID bulbs may contain materials that require special disposal procedures.
- Eye Protection: Avoid looking directly at the operating bulb. The intense light can cause eye strain or damage.
3. Setup and Installation
Follow these steps for safe and correct installation:
- Turn Off Power: Locate the power switch or circuit breaker controlling the light fixture and turn it OFF. Verify that the power is off before proceeding.
- Allow Cooling: If replacing an existing bulb, allow sufficient time for the old bulb to cool down completely. This may take several minutes.
- Remove Old Bulb: Carefully unscrew or unclip the old bulb from the fixture. If the bulb is broken, wear protective gloves and eye protection.
- Inspect Fixture: Check the fixture's socket and wiring for any signs of damage or wear. Address any issues before installing the new bulb.
- Install New Bulb: Holding the new Technical Precision bulb by its base, align the prong base with the fixture's socket. Gently insert and secure the bulb. Do not overtighten or force the bulb into place.
- Restore Power: Once the new bulb is securely installed, restore power to the fixture.
4. Operating Instructions
This replacement bulb operates like a standard HID bulb within a compatible fixture:
- Power On/Off: Use the fixture's standard switch to turn the light on or off.
- Warm-up Time: High-intensity discharge (HID) bulbs require a short warm-up period to reach full brightness and color stability. This typically takes a few minutes.
- Restrike Time: If the bulb is turned off, it may require a cool-down period before it can be reignited. Attempting to immediately restart a hot HID bulb may prevent it from striking or reduce its lifespan.
5. Maintenance
Minimal maintenance is required for this bulb:
- Cleaning: Periodically, when the power is OFF and the bulb is COOL, gently wipe the glass envelope with a clean, dry, lint-free cloth to remove dust or debris. Do not use liquid cleaners directly on the bulb.
- Replacement: The average life of this bulb is approximately 8000 hours. Replace the bulb when it reaches the end of its useful life, or if it shows signs of flickering, dimming, or failure to ignite.
6. Troubleshooting
If the bulb does not operate as expected, consider the following:
| Problem | Possible Cause | Solution |
|---|---|---|
| Bulb does not light up | No power to the fixture | Check power switch, circuit breaker, or fuse. |
| Bulb not properly installed | Turn off power, allow to cool, then re-seat the bulb firmly in the socket. | |
| Faulty bulb | Replace with a new bulb. | |
| Faulty fixture or ballast | Consult a qualified electrician to inspect the fixture and ballast. | |
| Bulb flickers or dims | Bulb nearing end of life | Replace the bulb. |
| Inconsistent power supply | Consult a qualified electrician. |
7. Specifications
| Feature | Detail |
|---|---|
| Brand | Technical Precision |
| Model Name | UHI-70DM/UVP, NW/4200K |
| Light Type | Metal Halide (HID) |
| Wattage | 70 Watts |
| Bulb Shape Size | T6 (Tubular) |
| Bulb Base | Prong |
| Color Temperature | 4000 Kelvin |
| Average Life | 8000 Hours |
| Special Feature | High Efficiency, Instant On (referring to initial strike, not full brightness) |
| Material | Glass |
| Bulb Length | 4.65 Inches |
| Included Components | Replacement Part (1 unit) |
8. Warranty and Support
For any questions, technical assistance, or support regarding your Technical Precision replacement bulb, please contact the manufacturer directly. Specific warranty details are not provided in this manual; please refer to the product packaging or the seller's website for warranty information.
Manufacturer: Technical Precision
For support, please visit the Technical Precision Store on Amazon or contact their customer service.