GE 90352 CMH39/T/C/U/830/G8.5

The GE 90352 CMH39TC/830 ConstantColor® is a premium 39W pulse-start ceramic metal halide lamp engineered for jewelry display, museum accent, high-end fashion merchandising, and architectural lighting applications requiring stable 3000K warm white color quality at 90+ CRI. Delivering 3,400 lumens at 87 lm/W through a G8.5 ceramic bi-pin base with a T6 tubular envelope, this ANSI M130-rated ConstantColor CMH lamp provides a 16,500-hour rated service life with universal burn position — without the green color shift common in standard quartz metal halide sources.

ADL Supply Expert Application & Replacement Guide

The GE CMH39TC/830 (Product Code 90352) is primarily specified by lighting designers, electrical contractors, and visual merchandising teams for high-end jewelry showcases, museum and gallery accent tracks, fashion boutique display lighting, and architectural feature downlights where 3000K warm white at 90+ CRI is the specification requirement and the G8.5 ceramic base CMH platform is installed. The ConstantColor® technology maintains stable 3000K color output throughout the lamp's 16,500-hour service life — standard quartz metal halide at this wattage typically shifts toward green as the arc tube ages, which is visually disqualifying in color-critical retail and gallery applications. This lamp requires a dedicated ANSI M130 pulse-start ballast — the M130 code is specific to the 39W CMH T6/G8.5 platform and is not interchangeable with M57, M102, or other metal halide ANSI codes even at similar wattages. GE recommends ballast GE GEMH39-MSJ-MV (63044); compatible ballasts from Philips Xieon, Osram Quicktronic, and Universal Lighting rated for ANSI M130 at 39W will also operate this lamp. This lamp is approved for enclosed fixtures only — UV radiation from the ceramic arc tube requires fixture-level containment; open track heads or open-face luminaires are not permitted.

Before You Order

Detailed Product Specifications

• Brand: GE Lighting (GE Current)
• Product Line Series: ConstantColor® CMH Ceramic Metal Halide — G8.5 T6
• Ordering Code: CMH39TC/830
• GE Product Code: 90352
• ANSI Code: M130 — Pulse-Start
• Recommended Ballast: GE 63044 GEMH39-MSJ-MV; any ANSI M130-rated 39W CMH pulse-start electronic ballast
• Core Technology: Ceramic Metal Halide (CMH) — ConstantColor® T6 Tubular
• Wattage: 39W
• Initial Lumens: 3,400 lm
• Luminous Efficacy: 87 lm/W
• Color Temperature (CCT): 3000K Warm White (830)
• Color Rendering Index (CRI): 90+
• Base Type Configuration: G8.5 Ceramic Bi-Pin (8.5mm pin spacing)
• Bulb Shape: T6 Tubular
• Maximum Overall Length (MOL): 3.37 inches (85.6mm)
• Rated Average Lifespan: 16,500 Hours
• Burn Position: Universal — Any Orientation
• Fixture Requirement: Enclosed Only — UV radiation requires fixture containment
• Mercury Content: Contains mercury — recycle per applicable regulations

Operation, Safety & Mounting Compliance

ANSI M130 Pulse-Start, Enclosed Fixture Requirement & Hot Restart

The ANSI M130 code designates the 39W pulse-start ceramic metal halide electrical platform — pulse-start ballasts apply a high-voltage ignition pulse to strike the ceramic arc tube without a probe-start electrode. Probe-start metal halide ballasts are not compatible and will not correctly ignite the CMH arc tube. The M130 code is specific to this wattage and lamp type — substituting M57, M102, or any other ANSI MH ballast code will result in incorrect electrical operation. This lamp must be used in an enclosed fixture that provides complete UV containment — CMH arc tubes emit UV radiation that can cause skin burns and eye inflammation in unshielded applications. Following any power interruption, allow the standard CMH hot restart cool-down interval (typically 5–10 minutes) before the arc re-ignites.

Mercury Content & Disposal

This lamp contains mercury and must be recycled through a certified lamp recycling program in compliance with applicable federal, state, and local regulations — do not discard in standard municipal solid waste.

Industry Cross-Reference Data

• Philips: CDM-TC 35W/830 G8.5 (electrical equivalent — note 35W vs 39W wattage difference; confirm ballast rating)
• Osram: Powerball HCI-TC 35W/830 WDL (electrical equivalent — confirm wattage and ballast before substitution)
• Sylvania: Metalarc Ceramalux 35W/830 G8.5 (equivalent CMH G8.5 platform — confirm wattage)
• Legacy Cross-Reference: Direct replacement for ANSI M130 39W G8.5 ceramic metal halide T6 lamp positions in jewelry display, museum accent, gallery track, and high-end fashion retail enclosed fixture installations

Bulk Commercial Lighting Supply & Project Support

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For formal wholesale inquiries, volume pricing modifications, or manufacturer spec sheet documentation, reach our commercial branch directly at 1-800-235-3489. We are your commercial supply partners as an authorized wholesale Lighting Distributor In Doral, Florida.