GE 85377 LU250/H/ECO

Product Overview

GE 85377 LU250/H/ECO — 250W High Pressure Sodium Lamp, E39 Mogul Base

The GE 85377 LU250/H/ECO is a 250-watt High Pressure Sodium (HPS) Lucalox lamp from GE Lighting, designed for outdoor area lighting, street lighting, and industrial high-bay applications. With an E39 Mogul Screw base, ED18 bulb shape, ANSI code S50/O, and universal burn position, this lamp delivers 30,000 initial lumens and a 24,000-hour rated life. The ECO designation indicates RoHS compliance. This is the Standard ECO variant — not the SBY hot-restrike version. Verify wattage, ANSI code, base type, and ballast compatibility before ordering — HPS lamps require an HPS-rated ballast and ignitor.

Wattage

250W

HPS / HID

Lumens

30,000 lm

Initial Output

Color Temp

2100K

Warm Amber

Base

E39

Mogul Screw

Rated Life

24,000 hrs

Average Life

Technical Specifications

SKU	EKLB85377-02
Brand	GE Lighting
Manufacturer Part Number	LU250S50
GE Order Code	85377
Series	GE Lucalox
Lamp Type	High Pressure Sodium (HPS) — Lucalox
Bulb Shape	ED18
Wattage	250W
Initial Lumens	30,000 lm
CRI	~22
Color Temperature	2100K Warm Amber
Base Type	E39 Mogul Screw
ANSI Code	S50/O (Open or Enclosed Fixture Rated)
Burn / Operating Position	Universal
Rated Average Life	24,000 hours
Variant	Standard ECO (RoHS Compliant) — not SBY hot-restrike
Cross Reference	LU250/ECO (equivalent 250W ANSI S50/O HPS E39 standard)
UPC / EAN	043168853774
Mercury Content	Contains mercury — dispose per local regulations.

Product Overview

The GE 85377 LU250/H/ECO is a professional-grade HPS replacement lamp engineered for high-output outdoor and industrial lighting. At 250 watts, it delivers 30,000 initial lumens — strong efficacy for large-area street, parking, and perimeter lighting as well as warehouse and industrial high-bay fixtures. The warm amber 2100K output is characteristic of High Pressure Sodium technology and is well suited for applications where visibility and energy efficiency take priority over color accuracy.

The ED18 bulb shape and E39 Mogul Screw base make this a direct replacement in fixtures previously housing a standard 250W HPS lamp with the same base. The S50/O ANSI rating confirms compatibility with both open and enclosed fixtures. Universal burn position allows installation in any orientation. The ECO designation confirms RoHS compliance, though the lamp still contains mercury as required by HPS technology — see disposal guidelines below.

Note: This is the Standard ECO variant. If your fixture requires hot-restrike capability, verify whether the SBY standby variant is needed before ordering.

Not recommended for: retail displays, color-critical inspection environments, sports venues, or any application requiring CRI above ~22.

Compatible Applications

Outdoor area and street lighting — Roadways, parking lots, municipal streetlights, and perimeter security lighting.
Industrial and commercial high-bay — Warehouses, manufacturing facilities, and large indoor/outdoor commercial fixtures.
Retrofit and maintenance replacement — Direct replacement for existing 250W HPS lamps with E39 base and S50/O ANSI code. Verify ballast compatibility before ordering.

Before Ordering — Verify

ANSI / Lamp Code: Confirm the existing lamp or equipment manual matches S50/O.
Wattage: Confirm the fixture is rated for 250W.
Base Type: Confirm the socket matches E39 Mogul Screw.
Ballast Compatibility: This lamp requires an HPS-rated ballast and ignitor. It will not operate on a Metal Halide or Mercury Vapor ballast.
Variant: This is the Standard ECO version — not the SBY hot-restrike variant. Confirm your application does not require standby hot-restrike capability.
Burn Position: Fixture supports Universal operation — no restriction.
Physical Fit: Confirm lamp shape (ED18), length, diameter, and clearance against the existing lamp or fixture manual.

Safety and Handling Guidelines

Correct Ballast Required: Use only with an HPS-compatible ballast and ignitor rated for this lamp. Using an incompatible ballast can result in lamp failure or fixture damage.
High-Pressure Arc Tube: HPS lamps operate under high internal pressure. Always use appropriate eye protection when handling or replacing lamps. Allow lamps to cool fully before removal.
Warm-Up / Restrike Time: HID lamps require a warm-up period to reach full output. After a power interruption, allow the lamp to cool before restarting — a hot restrike attempt can damage the lamp or ballast.
Approved Fixtures Only: Install only in fixtures rated for the listed lamp type, wattage, and operating position.
Mercury Content: Contains mercury. Do not dispose of in regular trash. Recycle through an approved lamp recycling program in accordance with federal, state, and local regulations.

Compliance

ECO designation indicates RoHS compliance — reduced hazardous substances per GE Lucalox ECO series standards.
Contains mercury — subject to applicable lamp recycling and disposal regulations. California, Washington, and other states may have mandatory take-back or handling fee requirements.
Verify additional certifications (UL, Title 20, Prop 65) with GE manufacturer specification sheet prior to use in regulated installations.