T8A | LED Tube

Architectural Excellence with Superior Optics

T5G offers architects and designers a specifier-grade LED tube that combines the optical and performance benefits of T5H with a rigid glass outer lens. This design ensures a flawless linear aesthetic, even when left unsupported in open fixtures or recessed into narrow architectural details.

With full 360º light output, T5G delivers exceptional performance in any T5 fluorescent fixture and excels in high-quality suspended fixtures by pushing light both upward and downward for balanced illumination.

Isollux T5G LED System Benefits

  • Lasts seven times longer than standard retro-fit tube.
  • Up to 59% Energy Savings (excluding controls).
  • Power to match all HE and HO T5 fluorescent.
  • 360º Omni-directional light source.
  • True One-for-One replacement.
  • Perfectly maintains linear aesthetics.
  • All standard colours (CCT) CRI85 or CRI95.
  • Compatible with all lighting controls.
  • Tuneable Circadian Spectrum (TCS)
  • No LED spotting when dimmed.
  • Installs easily and safely in minutes
  • Standard T5 pin, magnetic or bracket mount.
  • Eliminates maintenance.

Max Luminaire Efficacy

XE Chip Set
154lm/W
L85 > 10 Years 24/7

Standard T5 Pin Mount End Cap

No Power Loss in Cold Conditions

Standard Length Options

Simple Replacement to any T5 Fixture

The Isollux T5G is specified with a standard pin connection end cap with the option to specify wire at one (P1E) or both ends (P2E). This will fit any existing standard T5 tube fixture.

Compatible with all Lighting Controls Including Circadian Lighting.

T5G fully supports all control systems including DALI DT8 for circadian lighting and precise colour control. It operates reliably in temperatures ranging from -30ºC to ambient conditions up to +40ºC*. and provides a sustainable solution for upgrading architectural features while maintaining the highest standards of aesthetics and functionality.

Colour Rendering, Colour Temperature & Spectrum Control

With flat pricing across CRI 85, CRI 95 and Ambrite™, colour temperatures from 2700 K to 7000 K, and SDCM ≤3 as standard, specifiers have complete freedom to specify the light quality their application demands. Optional CRI 97, COI compliance, selective spectrum control and circadian lighting support colour-critical and specialist applications.

Click a link below to find out more:

CRI/CCT and ADVANCED SPECTRAL CONTROLS

How Isollux calculates LUMEN DEPRECIATION

Why bother replacing the fluorescent ballast?

Upgrading to the latest LED technology offers significant benefits, but leaving old fluorescent components in circuit undermines both performance and cost-effectiveness. Replacing the ballast with a dedicated LED driver is essential to maximise energy savings and eliminate unscheduled maintenance. Retro-fit solutions that rely on the original fluorescent ballast are a false economy, in reality they suffer multiple issues that cost you money:

  • A compromised hybrid system with limited warranties.

  • Increased fire risk from aging components.

  • Reduced efficacy and lower energy savings compared to a full LED solution.

  • Inevitable maintenance as components degrade and the ballast fails.

  • Difficulties sourcing and maintaining outdated parts.

  • Incompatibility with modern lighting controls.

  • Short replacement cycles and higher long term costs.

  • Optical issues and failure to deliver a high-quality long term solution.

  • Cannot be used to revalue the existing assets in your company accounts.

A smarter way to upgrade your lighting and achieve consistent results.

Fluorescent tubes perform differently depending on ambient temperature and type of fixture, which is why “one-size-fits-all” retrofit solutions typically deliver unpredictable results. The Isollux T5 system overcomes this by providing the power to match the light output and photometry of any fluorescent tube, and selected simply by length. During installation the LED driver is used to accurately set lux levels to the required level.

Whether maintaining existing lux levels with a straightforward one-for-one replacement, reducing light output to improve energy efficiency in corridors and service areas, or increasing brightness to meet new demands on existing fixtures, the Isollux T5 system adapts to deliver consistent, long-term performance while preserving the original lighting design and fixture spacing. While driver selection allows for simple on off solutions, integration with existing or introduction of wireless controls to ensure your LED upgrade optimises its long term value and ROI.

Whats more, the full cost of upgrading the light fixtures re-values the light fixtures in the company accounts, so that in all respects, from an ecological, optical, operational and financial terms it’s a far smarter long term investment.

Driver and Lighting Controls

  • Replacing the ballast with an LED driver is the only way to eliminate unscheduled maintenance and ensure we deliver the highest possible performance. We provide expert guidance to help you select the LED drivers that deliver optimal performance and compatibility for your project.

    During installation, the driver's output current can be pre-set or fine-tuned on-site to achieve precise lux levels, ensure statutory compliance, and maximise energy savings.

    Our ENEC-certified, flicker-free, SELV~DC-compliant drivers are designed to match the 100,000 hour service life of Isollux T5 LED tubes. They integrate seamlessly with existing controls or cost-effectively introduce new systems to further optimise energy efficiency. Driver warranty varies between models but can be specified to a maximum of ten years in line with the tube.

  • Fluorescent fixtures vary in efficiency due to tube type (HE or HO), fixture design, and ambient conditions.  Its the reason one-size-fits-all retrofit solutions cannot possibly deliver predictable results. Adjustable output is essential for achieving qualified results.

    Isollux T5 simplifies site audits with length-based selection and driver-adjustable lux levels. This flexibility helps installers to achieve precise results, optimal energy savings, and compatibility across all fluorescent fixtures.

  • While our products include standard settings for most installations, we also offer bespoke photometry and lighting design services on request. These services provide precise calculations and recommendations for large-scale rollouts, ensuring optimal performance that can be peer reviewed and tested in advance of a significant investment.

  • Isollux T5 integrates with all lighting control systems, from legacy options like 1-10V and C-Bus to modern DALI and wireless solutions such as Bluetooth and Casambi. This flexibility allows you to retain existing systems, avoiding retraining costs, or upgrade wirelessly, to enhance savings and deliver all the benefits of LED technology, at a fraction of the cost and environmental impact of replacing fixtures.

  • Simple, user-friendly, and adjustable in steps, our DIP switch drivers offer flexibility in the field, as they adjust at the point of installation without specialised tools. Best suited for projects where on site flexibility is essential and lux levels are balanced to most common applications. Once lux levels are set, the lights can be operated with a simple wall switch or integrated with existing or new controls to increase energy savings.

  • Near Field Communication (NFC) and other wireless solutions like Cassambi and Bluetooth offer finer adjustments (±1%) via wireless programming. They provide ultimate control and extremely accurate calibration. They are especially effective when combined with photometric testing and calibration and applied to large contemporary sites that have accurate ‘as-built’ records. Achieving highly targeted and predictable results when used in combination with revised lighting plans in Dialux or AGi 32.

Download Information Brochure