OSRAM SIRIUS HRI 371WS / 371S 370W Stage Lighting Bulb – High-Efficacy Beam Lamp for Moving Heads
Select your option from the dropdown: Bulb only, Ballast only, or Bulb + Ballast combo. This listing is for a genuine OSRAM SIRIUS HRI 371WS / 371S 370W high-efficacy beam lamp and its matching electronic ballast. Part of OSRAM’s renowned SIRIUS HRI series, this replacement bulb is built for professional stage lighting, moving head beam fixtures, and concert effect lights. It delivers 20,500 lumens at 7550K with an outstanding CRI 85 for vivid, true-to-life colors, and a tight 1.1 mm arc gap for crisp aerial beams and precise gobo projection.
Choose Your Option
- Bulb Only: OSRAM SIRIUS HRI 371WS / 371S 370W beam lamp, bare bulb. For users who already have a working ballast.
- Ballast Only: Matching 370W electronic/roller type ballast, 150x60x35 mm. For users who need a replacement ballast.
- Bulb + Ballast Combo: One OSRAM SIRIUS HRI 371WS / 371S bulb plus one matching ballast.
Technical Specifications
| Parameter | Bulb | Ballast |
|---|---|---|
| Model | SIRIUS HRI 371WS / 371S | — |
| Wattage | 370W | 370W output |
| Lumen Output | 20,500 lm | — |
| Color Temperature | 7550K | — |
| CRI | 85 Ra | — |
| Arc Gap | 1.1 mm | — |
| Avg. Life | 1500 hours | — |
| Lamp Voltage | 70 V | — |
| Lamp Dimensions | 58 x 58 x 72 mm | 150 x 60 x 35 mm |
| Working Distance | 31.4 mm | — |
| Burning Position | Any | — |
| Ballast Type | — | Electronic / Roller |
| Condition | Brand new, genuine OSRAM | |
Fast, Tracked Shipping
Ships promptly with tracking. Packed securely to prevent damage during transit.
365-Day Replacement Warranty
All options are covered by a full 365-day warranty against manufacturing defects.
Select your preferred option from the dropdown and add to cart.
