GE 20858 Q20MR16C/CG15

GE 20858 Q20MR16C/CG15ESX — ConstantColor® Precise™ Cover Glass MR16 20W 12V MR16 Halogen Reflector Lamp, GU5.3 Base, Narrow Spot, ANSI ESX

The GE Q20MR16C/CG15ESX (order code 20858) is a 20W 12V MR16 tungsten halogen reflector lamp from the ConstantColor® Precise™ Cover Glass MR16 family, with a GU5.3 two-pin base and a C-6 filament. It produces a narrow spot beam at 3150 centerbeam candlepower. Initial color temperature is 2900K and rated life is 5000 hours. Maximum overall length is 1.88 in. The lamp includes a cover glass, which contains fragments if the capsule fails and permits use in fixtures without a separate lens. Confirm the base type, beam angle, transformer voltage, and fixture shielding before ordering.

Technical Specifications

Product Overview

MR16 lamps are multifaceted reflector lamps: a small tungsten halogen capsule sits at the focus of a faceted reflector that collects and directs the light into a defined beam. The faceting smooths the beam and softens its edge compared with a smooth reflector. 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 ConstantColor® Precise™ Cover Glass range. ConstantColor refers to consistency of color point across the life of the lamp and from lamp to lamp, which matters when several fixtures light the same display or when a single lamp in a run is replaced. The integral cover glass contains fragments in the event of capsule failure and allows the lamp to be used in fixtures that do not have a separate lens.

Beam description 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 beams in the same 20W 12V group within this family are item 20857 (Flood, 475 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 without a separate lens, where a covered lamp is required

Before Ordering — Verify

• Confirm the beam required. This lamp is the narrow spot at 3150 cd. Other beams in the same 20W 12V group are item 20857 (Flood, 475 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 20W per lamp across the total lamp count.
• This lamp includes an integral cover glass. If the fixture already has a lens, an open face lamp may be specified instead.
• Confirm the fixture accepts an MR16 with a 1.88 in maximum overall length.
• Confirm case quantity — the manufacturer case quantity for this order code is 20.
• ANSI code ESX 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.
• Refer to GE's warning and caution notices for this lamp before installation. The notice codes listed for this order code in the manufacturer catalog are defined in a separate section of that catalog.

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 install a lamp whose cover glass is cracked, chipped, or missing. The cover glass provides fragment containment.
• 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: 20858
• Description: Q20MR16C/CG15ESX
• UPC: 043168992961
• ANSI Code: ESX
• Family: ConstantColor® Precise™ Cover Glass MR16
• Case Quantity: 20
• Lamp: 20W, 12V MR16 halogen, GU5.3 two-pin base, C-6 filament, cover glass
• Optical: Narrow Spot, 3150 cd centerbeam, 2900K
• Rated Life: 5000 hours
• Other Beams (20W 12V): item 20857 (Flood, 475 cd)

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