GE 88239 M258/EXN/CG

GE 88239 M258/EXN/CG — Precise™ Bright MR16 50W 12V MR16 Halogen Reflector Lamp, GU5.3 Base, 36° Beam, ANSI EXN, Closed

The GE M258/EXN/CG (order code 88239) is a 50W 12V MR16 tungsten halogen reflector lamp from the Precise™ Bright MR16 family, with a GU5.3 two-pin base. It produces a 36° beam at 2,100 centerbeam candela. Color temperature is 3,000K and rated life is 4,000 hours. Overall length is 50.5 mm. This is a closed lamp with a cover glass. Confirm the base type, beam angle, transformer voltage, and fixture shielding before ordering.

Technical Specifications

Product Overview

MR16 lamps are reflector lamps: a small tungsten halogen capsule sits at the focus of a dichroic reflector that collects and directs the light into a defined beam. Because the whole optical system is contained in a two-inch lamp, MR16 remains the standard source for display, accent, and retail lighting where a small aperture and a precisely controlled beam matter more than raw output.

This lamp is part of GE's Precise™ Bright MR16 range, which the catalog describes as offering long life, high light output and beam quality from an upgraded, computer-designed reflector. UV control is provided in both the open and closed forms.

Beam angle is the specification that most often determines which order code is correct, because centerbeam intensity changes substantially with beam spread at the same wattage. Other versions of this 50W 12V closed Precise Bright MR16 lamp: item 88227 (8° beam, 8,000 cd), item 88237 (18° beam, 4,750 cd), item 88238 (60° beam, 950 cd). Voltage matters equally: this is a 12V lamp and requires a matching low-voltage supply.

Compatible Applications

• Retail display and merchandise accent lighting
• Track lighting and adjustable downlights
• Museum, gallery, and exhibit casework
• Hospitality, restaurant, and hotel accent lighting
• Residential accent and decorative lighting
• Display cases and cabinetry lighting
• 12V low-voltage lighting systems with a matching transformer
• Fixtures specified for a GU5.3 MR16 lamp

Before Ordering — Verify

• Confirm the beam required. This lamp is the 36° version at 2,100 cd. Other versions in the same 50W 12V group are item 88227 (8° beam, 8,000 cd), item 88237 (18° beam, 4,750 cd), item 88238 (60° beam, 950 cd).
• Confirm the socket is GU5.3 two-pin. GU5.3, GX5.3, and GU7 Turn & Lock are not interchangeable, and a lamp with the wrong base will not seat or retain correctly.
• Confirm the supply is 12V and that the transformer is rated for 50W per lamp across the total lamp count.
• This is a closed lamp with a cover glass. Confirm the fixture is intended for this style of lamp.
• Confirm the fixture accepts an MR16 lamp with a 50.5 mm overall length.
• Confirm pack quantity — the manufacturer pack quantity for this order code is 10.
• ANSI code EXN can be used to cross-reference equivalents from other manufacturers. Confirm cover glass, base, and voltage as well, since the ANSI code alone does not distinguish them.
• Specifications are taken from GE's European lamp catalogue (Spectrum). Confirm suitability for your installation and local requirements.

Safety and Handling Guidelines

• Disconnect power and allow the lamp to cool completely before handling or replacement. Halogen lamps run hot and stay hot well after switch-off.
• Do not touch the capsule or reflector with bare hands. Skin oils cause localized overheating and can lead to premature failure. Clean with isopropyl alcohol if the glass is touched.
• Handle the lamp by its reflector body or base, not the capsule.
• Do not operate the lamp with a cracked, chipped, or otherwise damaged cover glass or reflector.
• Operate on a 12V supply only. Overvoltage operation sharply reduces lamp life.
• Do not install a lamp with a cracked, scratched, or otherwise damaged reflector.
• Keep combustible materials clear of the lamp and fixture.
• Follow the fixture manufacturer's instructions for lamp orientation and any position restrictions.
• This lamp contains no mercury. Recycle or dispose of it in accordance with local requirements.

Compliance

• Refer to the warning and caution notices published by GE for this order code before specification or installation.
• Contains no mercury. Not subject to mercury lamp disposal or shipping restrictions.
• Dispose of in accordance with local regulations.

Ordering Information

• Brand: GE Lighting
• Order Code: 88239
• Description: M258/EXN/CG
• ANSI Code: EXN
• Family: Precise™ Bright MR16
• Pack Quantity: 10
• Lamp: 50W, 12V MR16 halogen, GU5.3 two-pin base, closed
• Optical: 36° beam, 2,100 cd centerbeam, 3,000K
• Rated Life: 4,000 hours
• Other Versions (50W 12V): item 88227 (8° beam, 8,000 cd), item 88237 (18° beam, 4,750 cd), item 88238 (60° beam, 950 cd)

For wholesale pricing, bulk availability, or help confirming the correct replacement lamp, contact ADL Supply at 1-800-235-3489.