Product Overview
Osram HQI-E 70W/WDL coated POWERSTAR Metal Halide Lamp - 73W E27 Base, 2900K CRI 70, 9000h Rated Life
The Osram HQI-E 70W/WDL coated is an Osram POWERSTAR HQI quartz metal halide lamp rated at 73W / 95V on a E27 base, with a 2900K color temperature and CRI (Ra) 70. It is rated for 9000 hours average life.
This lamp should be selected by matching the Osram order code, wattage, base type, and light color to the installed fixture or ballast.
Wattage 73W 95V Nominal | Color Temp 2900K CRI 70 (Ra) | Lumens 4700 Nominal Initial | Rated Life 9000 Hours | Base E27 HQI-E |
Product Overview
Osram’s POWERSTAR HQI lamps are quartz metal halide lamps used across commercial, industrial, and display lighting where compact size, high lumen output, and good color rendering are required. Different HQI families (T, BT, TS, E, E/P) vary by bulb shape, base type, and intended fixture/reflector design — always match the exact family and base type to the installed fixture.
Technical Specifications
| Brand | Osram |
| ADL / Order Code (as listed) | O397801 |
| Osram Lamp Reference | HQI-E 70W/WDL coated |
| Family | HQI-E |
| ILCOS Code | MES/UB-70/30/1B-H-E27-55/144 |
| EAN | 4050300397801 |
| Wattage | 73 W |
| Voltage | 95 V |
| Ignition Voltage (Min/Max) | 3.6/5 kVp |
| Lamp Current | 0.95 A |
| Nominal Luminous Flux | 4700 lm |
| Luminous Efficacy | 64 lm/W |
| Light Color / Appearance Code | WDL |
| Color Temperature | 2900 K |
| Color Rendering Index (Ra) | 70 |
| Base | E27 |
| Diameter | 55 mm |
| Maximum Overall Length | 144 mm |
| Burning Position | universal |
| Average Lamp Life | 9000 hours |
| PF Correction Capacitor (50 Hz) | 12 µF |
| Standard Pack Quantity | 20 |
| Control Gear Type | UVS |
| NIOSH Skin Exposure Limit | > 50 |
| ACGIH UV Output | < 0.06 |
| Max. Permissible Outer Bulb Temp. | 330 °C |
| Max. Permissible Pinch/Base Edge Temp. | 190 °C |
| Luminaire Requirement | For open luminaires |
Key Features
- HQI-E family POWERSTAR quartz metal halide construction on a E27 base.
- 2900K color temperature at CRI (Ra) 70.
- 9000-hour average rated life.
Compatible Applications
- Commercial and industrial high-bay, floodlighting, and display fixtures rated for this HQI family and base type
- Retail and architectural accent lighting requiring high color rendering metal halide sources
- Maintenance replacement where Osram lamp reference HQI-E 70W/WDL coated or EAN 4050300397801 is specified
Before Ordering Verify
- Exact Osram Lamp Reference: Match HQI-E 70W/WDL coated (EAN 4050300397801) to the existing lamp label or fixture documentation.
- Base Type: Confirm the fixture socket matches a E27 base.
- Wattage & Control Gear: Confirm the fixture/ballast is rated for 73W.
- Color Temperature: Confirm 2900K matches the existing lamps in the fixture or space.
- Burning Position: Confirm the fixture orientation matches the rated universal burning position.
Safety & Installation Guidelines
- Qualified Installation: Install and service only with power disconnected, following applicable electrical codes.
- UV Exposure: Use only in fixtures with adequate shielding; do not operate with a damaged or broken outer envelope.
- Correct Ballast Match: Operating this lamp on an incompatible ballast/gear type can cause premature failure, incorrect color temperature, or fixture damage.
- Disposal: Metal halide lamps contain mercury — dispose of per local regulations (www.lamprecycle.org).
- Cooling: Allow the lamp to cool fully before handling or removal.
Wholesale & Project Support
ADL Supply supports contractors, facility managers, maintenance departments, and commercial buyers with Osram metal halide lamp replacement identification, project quoting, and volume order support.
For volume pricing, availability, or help confirming the correct Osram replacement lamp, contact ADL Supply at 1-800-235-3489.
