Product Overview

GE 29489 CMH20PAR30/FL25 20W Ceramic Metal Halide PAR30L Flood - 3000K 25° Beam E26 Base

The GE 29489 CMH20PAR30/FL25 is a 20-watt ConstantColor ceramic metal halide PAR30L long neck flood lamp featuring an unprotected arc tube and E26 medium screw base. Delivering 1,200 lumens of 3000K warm white light with 81 CRI and 4,600 candela center beam intensity, this lamp offers 10,000-hour rated life (based on 11 hours per start) with 60 LPW efficacy. Designed for open or enclosed fixtures with universal burning position.

Key Specifications

Product Code: 29489
Ordering Code: CMH20PAR30/FL25
Wattage: 20W
Base Type: E26 Medium Screw
Bulb Shape: PAR30L (Long Neck)
Finish: Clear
Beam Angle: 25° Flood (FL)
Center Beam Candlepower (CBCP): 4,600 cd
Color Temperature: 3000K (830 Code) Warm White
Color Rendering Index (CRI): 81
Initial Lumens: 1,200 lm
Luminous Efficacy: 60 LPW
Rated Life: 10,000 hours (based on 11 hours per start)
Maximum Overall Length (MOL): 4.75" (120.6mm) / 4.60" (116.8mm)
Diameter: 3.75" (95.2mm) / 3.81" (96.8mm) max
ANSI Code: C156/M156
Operating Position: Universal
Arc Tube: Unprotected
Fixture Rating: Open or Enclosed
Warm-up Time: 2 minutes to 90% light output
Hot Restart Time: 10-15 minutes
Base Temperature (MAX): 200°C (392°F)
Bulb Temperature (MAX): 300°C (572°F)
Case Quantity: 6 per case
UPC: 043168294898

25° Flood Beam Characteristics

Medium flood spread: 25-degree beam for general area lighting
Medium intensity: 4,600 candela center beam
Best for: General illumination, accent lighting, downlighting
Coverage at 10 feet: ~4.4-foot diameter pool
Between spot and wide flood: More coverage than 15°, more intensity than 60°

CMH20PAR30 Beam Pattern Comparison

GE 29487 (SP10): 10° Narrow Spot, 19,800 CBCP, tightest beam
GE 29488 (SP15): 15° Spot, 14,500 CBCP, narrow accent
GE 29489 (This Lamp - FL25): 25° Flood, 4,600 CBCP, general lighting
GE 42066 (WFL60): 60° Wide Flood, lower CBCP, broad coverage (if available)

ConstantColor CMH Advantages

Unprotected arc tube for maximum lumen output
UV control for reduced fading of fabrics and artwork
Color uniformity lamp-to-lamp for consistent white appearance
2-3× longer life than incandescent or halogen PAR lamps
4× more lumens per watt than incandescent or halogen
Medium 25° flood for versatile lighting applications
60 LPW luminous efficacy
Universal burning position (any orientation)
Long neck PAR30L design for deep recessed fixtures

Primary Applications

Retail Display and General Lighting
Track Lighting Systems
Downlighting and Accent Lighting
Museum & Gallery Illumination
Hotel Lobby and Reception Areas
Architectural Lighting
Commercial Display Cases

Ballast Compatibility

Requires low frequency square wave (LFSW) electronic ballast compatible with ANSI C156/M156:

GE GEMH20-MSJ-MV (63042)
GE GEMH20-MSF-MV (63043)
Any ANSI C156/M156 LFSW electronic ballast

⚠️ Critical: Not for use with standard line voltage. Requires specific HID ballast.

Safety & Handling

⚠️ UV Radiation Warning

This lamp emits UV radiation. The unprotected arc tube can cause serious skin burn and eye inflammation if the outer envelope is broken or punctured. Do not use where people will remain for more than a few minutes unless adequate shielding or other safety precautions are used.