Best Magnetic LED Retrofit Kits for 2×4 Troffers and More
Upgrade outdated fluorescent fixtures with magnetic LED retrofit kits designed for quick, tool-free installation. This guide highlights five top options that deliver high brightness, long life, and energy savings for commercial and residential spaces. Each product below includes a quick overview of standout features to help you compare performance and ease of use.
| Product | Brand | Key Benefit | Brightness |
|---|---|---|---|
| jimwhen 2Pack LED Retrofit Kit 2×4 | jimwhen | Long lifetime, high efficiency | 5400 LM |
| 4FT LED Retrofit Kit, Panel Light (4 Pack) | Splendidlled | Fast, tool-free installation | Max 5400 LM |
| 4FT Magnetic LED Retrofit Kit, Recessed | Splendidlled | Flame-retardant design | 5400 LM |
| jimwhen 4 Pack LED Troffer Retrofit Kit | jimwhen | High efficiency, easy install | 3600 LM |
| Magnetic Mount 2FT LED Retrofit Kit | jimwhen | Compact, versatile | 2800 LM |
JimWhen 2Pack LED Retrofit Kit 2×4 FT

The JimWhen 2×4 retrofit kit combines a 36W magnetic troffer retrofit with 5000K daylight white output at approximately 5400 lumens. It features 0-10V dimmability and is designed for T8, T10, and T12 fluorescent replacement. A long-lifetime claim of 50,000+ hours helps reduce maintenance, and energy savings can be substantial compared with incandescent options. Quick installation is highlighted as a four-step, five-minute process with no special tools required once the fixture is prepared.
4FT LED Retrofit Kit, Panel Light (4 Pack)

SplendidLLED’s 4FT panel-light retrofit kit provides a no-tools-needed installation with built-in magnets for fast, secure mounting in 1×2 or 2×4 luminaires. The kit uses aluminum backing for heat dissipation and flame-retardant materials to help reduce fire risk. It includes wiring connectors and a detailed installation manual, and delivers up to 5400 lumens at 5000K, reflecting an LED efficiency around 150 lm/W. The kit aims to be an affordable way to upgrade existing Troffers without replacing the housing.
4FT Magnetic LED Retrofit Kit, Recessed

This 4FT recessed kit from SplendidLLED emphasizes safety with an aluminum back for heat dissipation and flame-retardant components. A built-in magnet enables quick installation in iron troffers without professional tools, and dedicated wiring connectors simplify setup. With a 36W rating and output around 5400 lumens, it targets energy savings of roughly 80% compared with traditional fluorescent fixtures while maintaining bright daylight-like color temperatures around 3500K.
JimWhen 4 Pack LED Troffer Retrofit Kit

JimWhen’s 4-pack offers magnetic retrofit kits for 2×2 and, by combination, 2×4 configurations. Each kit provides up to 3600 lumens per fixture and uses 36W with 5000K daylight white color. It features 0-10V dimmability and is designed for quick installation—four steps, roughly five minutes. The kit emphasizes long life (50,000+ hours) and an energy-efficient replacement that reduces electricity usage versus legacy fluorescent tubes.
JimWhen Magnetic Mount 2FT Retrofit Kit

This two-tube kit is built around a 2×2 footprint with a 2×2 capable reach for larger assemblies. It uses 18W per kit, with an impressive 150 lm/W efficiency and 5000K daylight white output. It is designed for easy mounting with magnets inside iron fixtures, offering 0-10V dimming. The product emphasizes energy savings, quick install times, and widened applicability across kitchens, offices, garages, and classrooms where troffers are present.
2×2 FT LED Magnetic Retrofit Kit

Designed to replace 2×2 fixtures while offering the ability to combine two kits to form a 2×4 retrofit, this kit delivers approximately 5400 lumens at 5000K. It claims an energy efficiency of about 150 lm/W and a long lifespan, making it a candidate for both high-use commercial spaces and busy retail environments. Easy installation remains a central feature, with magnetic mounting and minimal wiring expectations for DIY upgrades.
JimWhen 4FT LED Retrofit Kit, 24W

This 4FT option provides 3600 lumens with a 24W LED driver and two tubes per kit for a total of 2×2 or single 2×4 application flexibility. It emphasizes a frosted cover aesthetic for softer lighting and includes an easy install process that avoids the need for special tools. It targets replacement for older 4-foot fluorescent tubes with a modest but bright daylight white output at 5000K.
4FT Magnetic LED Retrofit Kit, Recessed (2 Pack)

This two-pack kit focuses on recessed installations with a robust aluminum backing for heat management and flame-retardant materials at critical points. The magnetized design supports fast, tool-free mounting, and it comes with wiring connectors and an installation manual to facilitate a straightforward upgrade. With 36W per kit and a brightness of around 5400 lumens at 3500K, it aims to balance warm tone lighting with energy efficiency improvements over legacy fluorescents.
Buying Guide
Key considerations when choosing a magnetic LED retrofit kit include compatibility, brightness, color temperature, energy savings, and installation effort. First, confirm the fixture type—most kits target 2×2 or 2×4 troffers and can often be adapted for 1×2 configurations via kit combinations. Look for higher lumen outputs (5400 LM or more) if you need room-filling brightness, especially in offices or classrooms. Color temperature around 3500K-5000K provides options between warm and daylight ambiances; 5000K is common for task-oriented spaces, while 3500K offers a cozier warmth.
Energy efficiency is another critical factor. LED retrofit kits typically offer 80–90% energy savings versus incandescent or older fluorescents. In many cases, magnetic mounting reduces installation time to minutes and eliminates extensive wiring or tools, which is important for building owners performing DIY upgrades. Lifespan is also a practical metric; most kits advertise 50,000+ hours, translating to years of maintenance-free operation in busy environments.
Aesthetics and safety should guide choices too. Aluminum heat sinks help maintain LED performance, while flame-retardant materials reduce risk in high-heat areas. If dimming is needed, ensure the kit supports 0-10V dimming and is compatible with your existing dimming system. Finally, consider the availability of replacement parts and warranty terms, as these influence long-term maintenance costs and reliability.
Examples above illustrate a balance of performance and ease of installation—from quick, magnet-based mounting to higher-brightness, multi-tube configurations. For larger spaces, combining two 2×2 or two 2×4 kits can maximize lighting uniformity without a full fixture replacement. Always follow the included installation manual and, when in doubt, consult a qualified technician to confirm electrical compatibility and safety compliance.