Product Overview
Sylvania 67544 LU150/55/SBY Lumalux Standby High Pressure Sodium Lamp - 150W ET23.5, E39 Mogul, 2100K, 40000hr Life
The Sylvania 67544 LU150/55/SBY is a Sylvania Lumalux Standby non-cycling high pressure sodium (HPS) lamp rated at 150W on a E39 Mogul base, with a ET23.5 bulb, Clear finish, and 2100K color temperature. It is rated for 40000 hours average life, burned in the Universal position.
This lamp should be selected by matching the Sylvania product number, wattage, bulb shape, base type, and ANSI code to the existing lamp or fixture being replaced.
Wattage 150W E39 Mogul | Color Temp 2100K CRI 22 | Lumens 15700 Initial | Rated Life 40000 Hours | Efficacy 105 Lumens/Watt |
Product Overview
Sylvania Lumalux high pressure sodium lamps are used across commercial, industrial, and outdoor lighting where high efficacy and long life are priorities. The Ecologic (ECO) designation identifies lamps built with reduced or no added mercury; Standby (SBY) lamps add a dual-arc-tube design for instant restrike after a power interruption; Plus (PLUS) lamps extend rated life further; and Plantastar lamps are tuned for plant growth/horticulture applications.
Technical Specifications
| Brand | Sylvania |
| Sylvania Product Number | 67544 |
| Ordering Abbreviation | LU150/55/SBY |
| Product Family | Lumalux Standby |
| Wattage | 150 W |
| Bulb | ET23.5 |
| Base | E39 Mogul |
| ANSI Code / Fixture Requirement | S55/O |
| Bulb Finish | Clear |
| Burning Position | Universal |
| Average Rated Life | 40000 hours |
| Initial Lumens | 15700 |
| Mean Lumens | 12100 |
| CRI | 22 |
| Color Temperature | 2100K |
| Luminous Efficacy | 105 LPW |
| Standard Package Quantity | 20 |
Manufacturer Notes:
- LU150/100 (100V) and LU150/55 (55V) lamps are not interchangeable.
- Standby (instant restrike) feature not guaranteed beyond 24,000 operating hours.
Key Features
- Lumalux Standby construction: non-cycling high pressure sodium with 40000-hour average rated life.
- 2100K color temperature at 105 lumens per watt efficacy.
- Clear bulb finish on a E39 Mogul base.
- Instant restrike (Standby) capability after a power interruption, for up to 24,000 operating hours.
Compatible Applications
- Outdoor area, roadway, and parking lot lighting
- Industrial high-bay and warehouse lighting
- Security and floodlighting fixtures rated for HPS lamps
- Maintenance replacement where Sylvania product number 67544 is specified
Before Ordering Verify
- Exact Sylvania Product Number: Match 67544 (LU150/55/SBY) to the existing lamp label or fixture documentation.
- ANSI Code: Confirm the fixture/ballast is rated for ANSI code S55/O.
- Base Type: Confirm the fixture socket matches a E39 Mogul base.
- Wattage: Confirm the ballast is rated for 150W.
- 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.
- Ballast Match: Operating this lamp on an incompatible ballast can cause premature failure or fixture damage.
- Cooling: Allow the lamp to cool fully before handling or removal.
- Disposal: High pressure sodium lamps may contain trace mercury — dispose of per local regulations (www.lamprecycle.org).
Cross-Reference & Replacement Guide
| Sylvania 67544 | Philips/Signify: 265611 Grainger P/N: 4V531 GE Equivalent: 19266 (LU150/55/SBY/XL) |
Wholesale & Project Support
ADL Supply supports contractors, facility managers, maintenance departments, and commercial buyers with Sylvania HPS lamp replacement identification, project quoting, and volume order support.
For volume pricing, availability, or help confirming the correct Sylvania replacement lamp, contact ADL Supply at 1-800-235-3489.
