GE F28W-T5-841-HL-ECO 28W 4100K 4 FT High Lumen

The GE High Lumen ECOLOGIC 71654 (F28WT5/841HL/ECO) Lamp is a commercial-grade, high-efficiency miniature linear fluorescent bulb engineered for shallow architectural troffers, industrial high-bay assemblies, modern classroom pendant rows, and high-density retail general lighting. Delivering a powerful 3,050 initial lumens of crisp 4100K cool white light, this 28-watt tube utilizes advanced tri-phosphor chemistry to achieve a color rendering index of 85 CRI. Outfitted with precision G5 miniature bi-pin bases and an ultra-low mercury fill weight, it provides a reliable 24,000-hour rated average service life when driven by high-frequency electronic programmed rapid start control gear.

ADL Supply Expert Application & Replacement Guide

The GE F28WT5/841HL/ECO miniature linear lamp is an established industry facility upkeep baseline specified universally across modern office building complexes, school system classrooms, municipal institutions, and retail modular tracks. Featuring a high-lumen tri-phosphor lining, this high-performance ECOLOGIC® series tube maintains an exceptional 92% lumen tracking curve across its entire service lifecycle, eliminating the rapid dimming or yellow-green color shift typical in low-grade linear fluorescent bulbs.

Critical 45.2-Inch Casing Length Boundaries & Lampholder Electrical Controls: Maintenance crews and property managers executing site upgrades must carefully evaluate physical fixture dimensions prior to checkout. **This miniature T5 tube measures exactly 45.20 Inches from base face to base face**—it is custom-tailored strictly for metric-dimensioned T5 luminaires. Attempting to deploy this lamp inside standard standard 4-foot fluorescent channels (which measure 47.78 inches) will leave an extensive mechanical gap, preventing the bulb from locking into place.

Furthermore, because T5 systems operate exclusively over high-frequency electronic programmed-start ballasts, un-shunted miniature G5 lampholders are mandatory at both connection terminals. Un-shunted sockets keep the electrical contact tracks isolated, enabling low-voltage preheating circuits to condition the filaments safely before full ignition strikes. Reversing this configuration will short-circuit your ballast preheat wires or bypass filament conditioning, triggering sudden system non-ignition or premature cathode failure.

Detailed Product Specifications

• Brand Name: GE Lighting (Current Lighting Solutions Group / Starcoat® Product Line)
• Product Series Line: High Lumen ECOLOGIC® Metric Miniature T5 Series
• GE Factory Product Order Code SKU: 71654
• Manufacturer Description Nomenclature: F28WT5/841HL/ECO
• UPC Barcode Number (GTIN-12): 043168716543
• Standard Package Code (GTIN-14): 10043168716540
• Core Technology Class: Fluorescent Gas-Discharge — T5 Miniature Straight Linear Tube
• Primary Control Requirement: High-Frequency Programmed Rapid Start T8/T5 Electronic Ballast
• Operational Power: 28.0 Watts
• Nominal Arc Voltage Profile: Ballast Managed (Nominal continuous operating voltage across gas column)
• Initial Luminous Brightness: 3,050 Lumens (Post standard 100-hour seasoning burn at 25°C)
• Mean Luminous Lifecycle Output: 2,810 Lumens (92% Systemic Lumen Maintenance Factor at 40% life)
• Luminous Efficacy Ratio: 108.9 Lumens per Watt (LPW)
• Color Temperature Configuration: 4100K Cool White (841 Premium Phosphor Chemistry Blend)
• Color Rendering Index (CRI): 85 Ra (High Office Efficacy Color Fidelity Baseline)
• Scotopic / Photopic (S/P) Ratio: 1.7
• Base Type Configuration: G5 Miniature Bi-Pin Base
• Cathode Resistance Ratio Limits (Rh/Rc): 4.25 Minimum to 6.50 Maximum
• Maximum System Current Crest Factor: 1.7
• Glass Tube Casing Material: Premium Industrial Soda Lime Glass
• Nominal Tube Profile Diameter: T5 Shield (0.625" Inch / 15.9mm; Max structural width 0.670" / 17.0mm)
• Maximum Overall Length (MOL): 45.200" Inches Face to Face (1148.1mm actual metric width)
• Max Base Face to Base Face Dimension (A): 45.240" Inches (1149.1mm)
• Face to End of Opposing Pin Dimension (B): 45.420" Inches Minimum to 45.520" Inches Maximum
• Rated Average Service Lifespan (3-Hour Cycles): 20,000 Hours
• Rated Average Service Lifespan (12-Hour Continuous Cycles): 24,000 Hours
• Chassis Burn Position Limit: Universal — Operates reliably at any horizontal or vertical mounting angle

Operation, Safety & Mounting Compliance

High-Frequency Electronic Signal Transformation

When retrofitted onto modern high-efficiency electronic programmed-start ballasts, this lamp operates at frequencies exceeding 40 kHz, completely eliminating stroboscopic eye fatigue and rolling shadows in workspace areas. It incorporates an automated active surge insulation barrier that blocks standard utility switching transients and operational spikes from breaking down sensitive internal solid-state board capacitors.

ECOLOGIC® Low-Mercury Dosing and Safe Bulk Disposal Protocols

GE ECOLOGIC® manufacturing standards certify that this metric linear tube utilizes a tightly metered internal heavy-metal mercury fill dose (limited to an ultra-low 2.5 mg weight profile) combined with a low picogram threshold (44.5 pg/mean lumen-hr). This structural configuration allows spent modules to cleanly pass the strict Federal Toxic Characteristic Leaching Procedure (TCLP) test protocols under NEMA guidelines, preventing high-density environmental pollution. However, as an mercury-containing device, spent bulbs must be securely routed to certified regional commercial electronic waste processing repositories during facility maintenance sweeps rather than discharged into municipal solid landfills.

Commercial Equipment Industry Cross-References

This premium 28W T5 linear bulb serves as a direct drop-in replacement or electrical equivalent for the following lines:

• Sylvania Competitor Match: Pentron FP28/841/Y/ECO / Order Code 20902
• Philips Lighting Match: Silhouette F28T5/841 Alto Series / USA Catalog Part 230847
• Satco Hygrade Reference: S8132 / Premium High Lumen 28W T5 Line

Bulk Commercial Lighting Supply & Project Support

ADL 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.