GE ConstantColor® Precise™ FMW/CG 35W MR16 Flood Lamp

The GE ConstantColor® Precise™ 20859 (Q35MR16C/CG40) Lamp is a professional-grade, low-voltage tungsten-halogen reflector bulb engineered for high-end retail displays, museum wall washing, hospitality accents, and premium residential track systems. Delivering 520 lumens of crisp 3000K warm white illumination across a broad 40° wide flood beam, this specialized 35-watt MR16 features an advanced GU5.3 / GX5.3 bi-pin base and a high-performance C-6 filament. Outfitted with an integral UV-filtered cover glass and GE's proprietary dichroic reflector coating, it delivers an elite color rendering index of 100 CRI over an extended 5,000-hour rated service lifespan.

ADL Supply Expert Application & Replacement GuideThe GE ConstantColor® Precise™ FMW/CG 35W series lamp is an architectural industry benchmark specified heavily for high-end boutique storefront merchandise arrays, historical gallery displays, and luxury hospitality settings. Unlike generic MR16 bulbs that generate a murky, greenish tint as they degrade—distorting the true texture and color alignment of illuminated fabrics or artwork—GE's advanced dichroic coating ensures pristine, unchanging color profiles from the first hour of initialization until the conclusion of its 5,000-hour service life cycle.Critical 12V Step-Down Transformer Mandate & Low-Voltage Socket Controls: Electrical contractors and property maintenance managers must confirm layout circuit designs prior to installing hardware: this is a low-voltage 12V halogen lamp and absolutely requires an external step-down transformer. Driving this GU5.3/GX5.3 bi-pin capsule directly with standard 120V or 277V mainline building tracks will instantly blow the delicate C-6 filament, destroying the internal gas chemistry. Ensure the solid contact pins insert completely flush into the ceramic lampholder sockets; loose seating introduces contact resistance, leading to rapid terminal socket melting or intermittent ignition dropouts.Detailed Product Specifications

• Brand Name: GE Lighting (General Electric Consumer & Industrial Line)
• Product Series Line: ConstantColor® Precise™ Low-Voltage Halogen Series
• GE Factory Product Order Code SKU: 20859
• Manufacturer Description Model Nomenclature: Q35MR16C/CG40
• Official Trade Industry ANSI Identifier: FMW/CG (Cover Glass Variant)
• UPC Barcode Number (GTIN-12): 043168994224
• Core Technology Class: Low-Voltage Tungsten-Halogen (Quartz Envelope)
• Primary Control Requirement: 12V Low-Voltage Step-Down Transformer (Electronic or Magnetic)
• Operational Power Draw: 35.0 Watts
• Nominal Input Voltage: 12 Volts AC
• Continuous Operating Amperage Draw: 2.92 Amperes
• Initial Luminous Brightness: 520 Lumens
• Center Beam Candle Power (CBCP): 900 cd
• Beam Angle Specification: 40° Wide Flood (WFL)
• Color Temperature Configuration: 3000K Warm White Halogen Balance
• Color Rendering Index (CRI): 100 Ra (Absolute Full Spectrum Color Fidelity)
• Internal Filament Geometry: C-6 Compact Axial Alignment
• Base Type Configuration: GU5.3 / GX5.3 Turn-and-Lock Miniature Bi-Pin Base
• Reflector Envelope Profile: MR16 Dichroic Hard-Coated Glass Reflector (50mm / 2.0" Inch Outer Diameter)
• Face Design Material: Integral Clear Cover Glass with Advanced UV-Radiation Filter Shield
• Maximum Overall Length (MOL): 47.6 mm (1.875" Inches total height base to cover glass face)
• Rated Average Lifespan: 5,000 Hours (Exceeds standard 2,000-hour generic MR16 options)
• Chassis Burn Position Limit: Universal — Operates reliably at any structural mounting orientation

ConstantColor® Technology Benefits

GE's advanced ConstantColor® reflector coating delivers consistent clear white light throughout the lamp's rated life. Unlike ordinary MR16 reflectors that produce murky, greenish light as they age—discoloring illuminated objects—ConstantColor® maintains:

• Stable 3000K color temperature from first hour to last
• High lumen maintenance — consistent light output throughout 5,000-hour life
• No greenish tint that affects merchandise and artwork appearance
• Smooth, even beam pattern with minimal back-fixture light leakage

Operation, Safety & Mounting Compliance

• Keep all combustible or heat-sensitive materials safely away from the lens shield face during active operation cycles.
• Deploy exclusively inside track heads or recessed canisters officially rated to isolate the thermal loads of a 35W halogen source.
• Do not load power into the circuit if the protective front cover glass envelope is cracked, scratched, or missing.
• Turn off master electrical breaker lines and permit the fixture casing to sit unbothered for at least 15 minutes to cool down completely before handling.

Bulk Commercial Lighting Supply & Project SupportADL Supply handles volume distribution shipments, multi-pack logistics, and contractor project quotes for procurement teams, schools, and warehouse facilities nationwide.For specialized contractor pricing tiers, job-site pallet deliveries, or comprehensive submittal documentation, contact our support team directly at 1-800-235-3489. We are your commercial supply partners as an authorized wholesale Lighting Distributor In Doral, Florida.