Product Overview
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The GE ConstantColor® Precise™ 35W MR16 is a premium 12V low-voltage halogen spot lamp engineered for demanding retail display, museum, gallery, and architectural accent lighting applications requiring precise beam control and long-term color consistency. Delivering 3,200 CBCP through a 20° spot beam with 525 forward lumens, this ANSI FRA-coded lamp features GE's proprietary Constant Color® reflector coating to maintain stable 3000K warm white output and 100 CRI color fidelity throughout its 5,000-hour rated life — eliminating the greenish color shift that degrades merchandise appearance in standard aging MR16 lamps.
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Wattage
35W
12V Halogen MR16
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Beam Angle
20° Spot
3,200 CBCP
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Color Temp
3000K
100 CRI
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Base
GX5.3
GU5.3 Compatible
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Rated Life
5,000 Hr
ANSI FRA
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ADL Supply Expert Application & Replacement Guide
The GE ConstantColor® Precise 35W MR16 is primarily specified by lighting designers, visual merchandising teams, and electrical contractors across high-end jewelry showcases, fashion boutiques, cosmetics displays, museum and gallery accent tracks, and architectural feature lighting where color consistency across a multi-lamp installation — and across the full lamp service life — is as important as the initial beam quality. The ConstantColor® reflector coating withstands temperatures up to 500°C without the coating degradation that causes the green-yellow color drift seen in standard dichroic MR16 reflectors as they age, making this lamp the correct specification when precise color rendering consistency across a bank of display lamps over months of operation is a commercial requirement. This lamp is available in two configurations — open face (GE Order Code 20826) for fixtures with an integral UV-filtering front glass, and covered glass (GE Order Code 20860, FRA/CG) for open-face fixtures where the lamp itself must provide UV containment — contractors must confirm which version their fixture requires before ordering. Both versions use the same GX5.3 bi-pin base on a standard 12V low-voltage transformer circuit and are fully dimmable with compatible low-voltage dimmers.
Before You Order
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Verify Before Ordering
Two Versions Available — Confirm Open Face (20826) or Covered Glass (20860) | 12V Transformer Required
This lamp is available in an open face version (GE 20826) for enclosed fixtures with a UV-filtering front glass, and a covered glass version (GE 20860 FRA/CG) for open-face fixtures. Confirm which version your fixture requires before ordering — the open face lamp must not be installed in a fixture without a UV-filtering front shield. This lamp requires a 12V low-voltage transformer rated for a minimum 35W halogen load. It cannot be direct-wired to 120V line voltage.
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Detailed Product Specifications
- Brand: GE Lighting
- Product Line Series: ConstantColor® Precise™ Halogen MR16
- GE Order Code (Open Face): 20826
- GE Order Code (Covered Glass): 20860 (FRA/CG)
- ANSI Code: FRA
- Core Technology: Tungsten-Halogen MR16 with ConstantColor® Reflector Coating
- Wattage: 35W
- Operating Voltage: 12V Low Voltage
- Beam Angle: 20° Spot
- Center Beam Candle Power (CBCP): 3,200 cd
- Forward Lumens: 525 lm
- Lumen Maintenance: Greater than 90% over rated life
- Color Temperature (CCT): 3000K Warm White
- Color Rendering Index (CRI): 100 Ra
- Base Type Configuration: GX5.3 Bi-Pin (GU5.3 compatible)
- Maximum Overall Length (MOL): 1.99 inches (50.5mm)
- Bulb Diameter: 2.0 inches (50.7mm)
- Rated Average Lifespan: 5,000 Hours
- Burn Position: Universal — Any Orientation
- Dimmable: Yes — compatible with standard low-voltage dimmers
- Case Quantity: 20 units per case
- Mercury Content: None — standard e-waste disposal applies
Operation, Safety & Mounting Compliance
Open Face vs. Covered Glass Selection & UV Requirements
The open face version (20826) has no integral front cover glass — it must be installed inside a fixture that provides its own UV-filtering front glass or lens to contain UV radiation and pressurized envelope fragments in the event of lamp failure. The covered glass version (20860 FRA/CG) incorporates an integral front cover glass, qualifying it for use in open-face track heads and gimbal fixtures without a separate UV shield. Never install the open face version in an open-face fixture without a UV-filtering front glass — this creates both a UV exposure hazard to personnel and a safety risk from pressurized envelope fragments. The Constant Color coating withstands continuous operating temperatures up to 500°C without degradation, providing the thermal stability that sustains consistent 3000K output across the full 5,000-hour service life.
Transformer Requirements & Quartz Handling
This lamp requires a 12V step-down transformer rated for a minimum 35W continuous halogen load — both magnetic (toroidal) and electronic low-voltage transformers are compatible, provided the transformer's minimum load threshold is met. The lamp cannot be direct-wired to 120V line voltage. Never handle the quartz glass envelope or MR16 reflector body with bare skin — skin oils bond to the quartz surface during thermal cycling, creating localized hot spots that accelerate premature envelope failure. Always relamp using clean cotton gloves or a lint-free cloth. Allow a minimum 15-minute cool-down before re-lamping.
Industry Cross-Reference Data
- Osram Sylvania: 58312 / 35MR16/SP20/C/FRA (equivalent ANSI FRA 35W 12V MR16 20° spot with Constant Color-class coating)
- Philips: 415748 / 35MR16/FL20/C/FRA (equivalent 35W 12V GX5.3 ANSI FRA spot)
- Ushio: 1003339 / EXN/FRA/C 35W 12V (equivalent ANSI FRA covered glass MR16 platform)
- Legacy Cross-Reference: Direct replacement for ANSI FRA-coded 35W 12V GX5.3 halogen MR16 spot lamp positions in retail display, museum, gallery, and architectural track fixture hardware
Bulk Commercial Lighting Supply & Project Support
ADL Supply delivers commercial-volume logistical fulfillment, tiered commercial contractor discounting strategies, and full pallet project quoting options to electrical accounts across the United States.
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.