GE 22575 100W Mercury Vapor HID Lamp – H38/O ANSI | 3900K | ED23.5 Bulb | E39 Mogul Base | 20,000-Hour Life

The GE 22575 is a 100-watt mercury vapor HID lamp built for commercial and industrial area lighting applications requiring long service life and stable light output. H38/O ANSI classification, E39 mogul screw base, ED23.5 bulb shape, universal burn position, and 20,000-hour rated life make this a direct replacement lamp for compatible mercury vapor fixtures in parking lots, security lighting, outdoor area fixtures, warehouses, and industrial facilities.

Quick Specs

• Brand: GE Lighting
• Part Number: 22575
• Lamp Type: Mercury Vapor HID
• Wattage: 100W
• ANSI Code: H38/O
• Color Temperature: 3900K
• CRI: 50
• Initial Lumens: 4,000 lm
• Mean Lumens: 2,800 lm
• Bulb Shape: ED23.5
• Base Type: E39 Mogul Screw Base
• Burn Position: Universal
• Fixture Compatibility: Open or Enclosed Fixtures
• Overall Length (MOL): 7.5 inches
• Diameter: 2.937 inches
• Rated Life: 20,000 hours

Product Overview

The GE 22575 is a 100-watt mercury vapor lamp using H38/O ANSI classification — the standard electrical designation for 100W mercury vapor sources operating on compliant ballasts. Mercury vapor lamps produce a characteristic blue-white light at 3900K with a CRI of 50, delivering adequate visibility for outdoor area and security lighting applications where color accuracy is not a primary requirement.

Initial lumens of 4,000 decrease to a mean of 2,800 as the lamp ages — mercury vapor lamps exhibit significant lumen depreciation over their service life compared to metal halide sources, which is an important consideration for footcandle-critical applications. The 20,000-hour rated life makes this lamp appropriate for installations where lamp longevity and reduced maintenance frequency are prioritized over light quality or energy efficiency.

The ED23.5 bulb shape and E39 mogul screw base are the standard configuration for 100W mercury vapor fixtures. Universal burn position allows installation in any orientation. Compatible with both open and enclosed fixture types. ANSI C78.1400, UL Listed, RoHS compliant, and NEC 410 compliant.

Important note on mercury vapor lamp technology: Mercury vapor lamps are legacy HID technology that has been largely superseded by metal halide, high-pressure sodium, and LED sources in new installations. This lamp is appropriate as a direct replacement in existing mercury vapor fixtures. Facilities evaluating new installations or fixture retrofits should consider whether higher-efficiency alternatives are more appropriate for their application.

Why Choose This Product

• H38/O ANSI classification — direct ballast match: The H38/O ANSI code identifies the specific electrical operating parameters for this lamp. Confirm your existing fixture and ballast carry the H38 designation before ordering to ensure correct compatibility.
• 20,000-hour rated life: Long service life reduces lamp replacement frequency in hard-to-access outdoor fixtures such as area lighting poles, security fixtures, and high-bay industrial installations.
• Universal burn position: Installs in any fixture orientation — base up, base down, or horizontal — without affecting lamp performance or rated life.
• Open and enclosed fixture compatible: Rated for use in both open and enclosed fixture housings — no fixture restriction for this lamp designation.
• E39 mogul base — industry standard: The E39 mogul screw base is the standard for 100W mercury vapor fixtures, ensuring straightforward physical replacement in compliant housings.
• ED23.5 bulb shape: Standard bulb profile for 100W mercury vapor fixtures — fits existing fixture housings without clearance issues in compliant installations.

Technical Specifications

Dimensions

Applications

The GE 22575 100W mercury vapor lamp is suited for commercial and industrial area lighting applications in existing mercury vapor fixture installations:

• Parking lot and area lighting – Replacement lamp for pole-mounted mercury vapor area fixtures in commercial parking lots and outdoor areas requiring long-life operation with minimal maintenance access.
• Security lighting – Outdoor security fixtures in commercial, industrial, and institutional perimeter lighting where continuous burn cycles and long lamp life reduce maintenance requirements.
• Industrial facilities and warehouses – High-bay and low-bay mercury vapor fixtures in industrial environments where the existing fixture inventory operates on H38 ballasts.
• Outdoor commercial HID systems – General commercial area lighting installations running compatible mercury vapor ballasts where lamp replacement rather than fixture retrofit is the appropriate maintenance strategy.
• Government and institutional outdoor lighting – Municipal and institutional fixtures on existing mercury vapor infrastructure where direct lamp replacement extends fixture service life without capital expenditure.

Replacing Your Current Mercury Vapor Lamp?

Confirm the following before ordering to ensure a compatible replacement:

• ANSI code — H38/O: This is the critical compatibility specification. Verify your existing fixture and ballast are rated for H38 operation. Mercury vapor ANSI codes identify specific electrical operating requirements — lamps with different ANSI codes are not interchangeable on the same ballast even if wattage appears similar.
• Wattage: 100W mercury vapor. Do not install in fixtures rated for different mercury vapor wattages (175W, 250W, 400W) or for different lamp technologies (metal halide, high-pressure sodium).
• Base type: E39 mogul screw base. Verify your fixture socket accepts E39 mogul base lamps.
• Burn position: Universal — no restriction on installation orientation.
• Fixture type: Rated for open and enclosed fixtures. Verify your fixture housing type matches.
• Warm-up time: Mercury vapor lamps require a warm-up period of several minutes to reach full output after ignition. If the lamp is extinguished while hot, a cool-down period is required before re-striking — this is normal behavior for mercury vapor HID technology.
• Lumen depreciation: Mean lumens of 2,800 represent a 30% reduction from the 4,000 initial lumen rating. If your installation has experienced reduced light levels over time, this is normal for mercury vapor technology — lamp replacement will restore initial output levels.

Safety Information

Warning: Risk of electric shock, fire, and UV exposure. Read all safety information before installation.

• Disconnect power before installation or maintenance. Allow the lamp to cool before handling.
• Use only in fixtures rated and listed for this product type and wattage.
• Maintain required clearance from combustible materials — consult fixture and lamp specifications.
• Replace cracked or damaged lamps immediately — a damaged outer envelope on a mercury vapor lamp can expose UV radiation.
• Do not exceed rated operating conditions for voltage, wattage, or burn position.
• Inspect lamps regularly for damage, discoloration, or physical wear.
• Follow all applicable electrical codes and installation standards including NEC 410.
• Mercury vapor lamps contain mercury — dispose of in accordance with local and state lamp recycling regulations. Do not dispose of in general waste. Visit lamprecycle.org for recycling resources.

Ordering Information

• Brand: GE Lighting
• Part Number: 22575
• Lamp Type: Mercury Vapor HID, 100W
• ANSI Code: H38/O
• Base: E39 Mogul Screw
• Case quantities and bulk pricing: Contact ADL Supply for volume orders.

Compliance and Certifications

• ANSI C78.1400: Compliant
• UL Listed: Yes
• RoHS Compliant: Yes
• NEC 410 Compliant: Yes
• Verify California Title 20 / T24 compliance with manufacturer specification sheet.
• Verify Prop 65 warning requirements with manufacturer specification sheet.
• Mercury disposal: This lamp contains mercury. Dispose of per local and state lamp recycling regulations. For lamp recycling information, visit lamprecycle.org.

ADL Supply recommends confirming all applicable compliance data with the GE Lighting official product data sheet prior to specification or installation.