Product Overview

Philips TL5 HE 28W/865 ALTO Fluorescent Lamp — 28W | 4ft Linear Tube | 2,600 Lumens | 6500K Ultra Daylight | G5 Miniature Bi-Pin Base

The Philips TL5 High Efficiency 28W/865 ALTO Lamp is a commercial-grade, linear fluorescent tube engineered exclusively for sleek architectural troffers, modern shallow-profile office strips, high-tech retail display valances, and strict cleanroom task light banks. Sourcing 2,600 initial lumens of crisp 6500K ultra daylight illumination, this premium 5/8-inch diameter component features an elite system efficacy of 93 LPW and operates at an advanced color rendering index of 85 CRI. Outfitted with heavy-duty **G5 Miniature Bi-Pin base contacts** and an optimized low-mercury arc discharge matrix, it ensures superior lumen maintenance up to 95% across its extended 24,000-hour rated average service life.

Power Draw

28W

High Efficiency Core

Brightness

2,600 lm

2,450 Mean lm

Color Temp

6500K

85 CRI Ultra Daylight

Interface

G5 Mini

Bi-Pin Contacts

Rated Life

24,000 h

ALTO® Low-Mercury

ADL Supply Expert Application & Replacement Guide

The Philips TL5 High Efficiency (HE) 28W/865 lamp is an established electrical facility maintenance baseline specified universally across commercial commercial buildings, industrial laboratory spaces, healthcare diagnostic offices, and premium architectural retail bays. Running on advanced low-pressure fluorescent pathways, this miniature tube is optimized specifically to strike and operate under the high-frequency control profiles of **Programmed Start (PS) electronic ballast networks**. Upgrading facility layouts to this metric T5 framework allows corporate real estate portfolios to achieve maximum structural lumen retention while utilizing up to 40% less bulk plastic and glass materials compared to legacy 4-foot T8 or T12 components.

Critical Ballast Coordination and Mechanical G5 Miniature Pin Seating Boundaries: Facility management teams and electrical contractors executing routine re-lamping sweeps must analyze structural housing properties closely prior to checkout: this metric T5 tube features an absolute physical length of 45.24" Inches ($1149.0\text{ mm}$), making it physically shorter than standard 48-inch domestic T8 and T12 bulbs. Attempting to fit or force this capsule into standard T8 lampholders will fail, as the sub-miniature G5 pin structure features a tight centerline spacing of exactly 5mm.

Furthermore, check that the host fixture electronic engine is rated to run an HE (High Efficiency) 28W current profile rather than an HO (High Output) 54W current track. Firing this 28-watt capsule down line paths driven by an uncalibrated 54W HO ballast engine will cause immediate thermal over-drive, prompting rapid end-blackening, cathode breakdown, or an early ballast system shutdown. Slide the dual G5 pins completely straight into the miniature socket tracks and rotate the glass tube a crisp 90 degrees to lock the internal circuit channels home.

Verify Before Installing

45.24" Metric Length Checked — G5 5mm Pin Spacing — 1.4mg Low-Mercury ALTO Matrix

This bulb features a standard T5 physical diameter profile of 16mm or 5/8" Inches (16.0mm). Verify your fixture louvers, lens tracks, and industrial reflector clearance parameters exactly prior to checkout. Life ratings baseline at **24,000 hours** under standard commercial programmed-start cycles, maintaining a high 95% lumen transmission level through the life of the lamp. Never handle the glass envelope near the ends with greasy hands; skin oils can interact with the high-temperature cathode zones, altering glass thermal tracking and creating premature micro-fracturing. Clean with an alcohol wipe if contact occurs.

Mercury Compliance and Safety Notice: This product is a low-pressure gaseous fluorescent tube and contains exactly 1.4 mg of mercury inside its internal uniform phosphor matrix. While it incorporates advanced ALTO® environmental chemistry to pass the US EPA's strict TCLP test guidelines for non-hazardous waste criteria, it must be recycled according to local state environmental disposal codes. It remains completely legal for standard commercial distribution and transit-shipping to all 50 states.

Detailed Product Specifications

Brand Name: Philips Lighting (Signify Holding / TL5 High Efficiency ALTO® Portfolio)
Product Series Line: Linear Low-Pressure Fluorescent Metric T5 Series
Philips Factory Product Order Code / 12NC: 927926786555 (927926786558)
Sylvania / Global Cross-Reference Equivalent: FP28/865/HE/ECO, FP28/865
UPC Barcode Number (GTIN-12): 046677230869
Master Production Catalog Code: TL5 HE 28W/865 ALTO
Core Technology Class: Low-Pressure Gaseous Mercury-Arc Discharge Linear Fluorescent Tube
Primary Control Requirement: External Calibrated High-Frequency Programmed-Start Electronic Ballast
Operational Power Draw: 28.0 Watts continuous running consumption
Initial Luminous Brightness (At 25°C baseline): 2,400 Lumens
Initial Luminous Brightness (At 35°C Optimum Peak): 2,600 Lumens (Post standard 100-hour factory seasoning)
Design Mean Lumens (Optic Depreciation): 2,450 Lumens measured at 40% calibrated lifecycle
Systemic Luminous Efficacy Ratio: 93 Lumens per Watt (LPW nominal)
Color Temperature Configuration: 6500K Ultra Daylight (Internal uniform rare-earth tri-phosphor coating)
Color Rendering Index (CRI): 85 Ra nominal baseline (High visual sharpness rating)
Base Type Configuration: G5 Miniature Bi-Pin Base (Dual nickel-plated 5mm pitch structural prongs)
Bulb Shape Enclosure Code: T5 Miniature Profile (5/8" Inch / 16.0mm actual cylinder glass width)
Maximum Overall Length (MOL): 45.24" Inches (1149.0mm actual structural prong edge-to-edge height)
Face-to-Base Face Dimension: 44.96" Inches (1142.1mm maximum insertion socket shoulder clearance)
Rated Service Lifespan (Programmed-Start): 24,000 Hours average performance baseline
Dimmable Configuration: Yes (Via compatible specialized high-frequency electronic dimming ballasts)
Fixture Safety Rating: Open or Enclosed Indoor/Outdoor Fluorescent Luminaires Approved

Certified High-Frequency Electronic Ballast Cross-References

This premium 28W 45-inch metric T5 fluorescent tube is certified for seamless integration with the following replacement engines:

Philips Advance Match: Advance Centium ICN-2S28-T or SmartMate electronic ballast series
Sylvania Quicktronic Sync: Quicktronic QHE-2x28T5-UNV-PSN High-Efficiency Programmed Start Core
Universal Triad Alternative: Triad Universal B228PUNV-C High-Frequency Electronic Drive

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.