Product Category

LED Retrofit Kits for Strip Light Fixtures

LED retrofit kits that convert existing fluorescent troffers, strip fixtures, and HID luminaires to LED without replacing the fixture body. Magnetic troffer kits, linear strip retrofits, and troffer retrofit luminaires — all designed for one-person installation.

DLC Listed DLC Qualified Rebate Eligible
UL Listed UL Listed Safety Certified
10-Year Warranty 10-Year Full Warranty

4 products

Wattage 0W - 0W

Jarvis Lighting LED retrofit kits convert existing fluorescent troffers, T8/T12 strip fixtures, and HID luminaires to LED without replacing the fixture body. The lineup includes JSK magnetic troffer strip kits (16–24W), SRK/SRK-N linear strip retrofits (18–80W), and JTRFRK troffer retrofit luminaires — all designed for one-person installation in under 15 minutes per fixture.

Specifications at a Glance

  • Wattage: 16W – 80W (selectable on most)
  • Output: 2,132 – 10,133 lumens
  • CCT: 3500K / 4000K / 5000K (selectable)
  • Voltage: 100-277V, 50/60Hz
  • Kit Types: Magnetic troffer strip, linear strip, troffer luminaire
  • Compatibility: T12, T8, T5 fluorescent, HID
  • Install Time: 5–15 minutes per fixture
  • Dimming: 0-10V standard, sensor-compatible

Which retrofit kit fits your existing fixture?

Existing Fixture Recommended Kit LED Wattage Mount Method Install Time
2×4 fluorescent troffer (T8/T12/T5) JSK 4ft Magnetic Kit 24W Magnetic clips ~5 min
2×2 fluorescent troffer (T8/T12/T5) JSK 2ft Magnetic Kit 16–24W Magnetic clips ~5 min
2×4 troffer (full luminaire upgrade) JTRFRK Troffer Retrofit 20–45W Slides into housing ~10 min
4ft linear fluorescent strip (T8/T12) SRK or SRK-N Linear Retrofit 18–80W Mounts to existing body ~10–15 min
8ft T12 strip fixture 2× SRK end-to-end 48–80W Mounts to existing body ~15 min

Frequently Asked Questions

How long does it take to install an LED retrofit kit?
The Jarvis JSK magnetic troffer strip kit installs in approximately 5 minutes per fixture — the LED strips snap into place with magnetic clips and wiring connects to the existing junction box. The JTRFRK troffer retrofit luminaire takes approximately 10 minutes. The SRK/SRK-N linear strip retrofit takes 10–15 minutes. All kits are designed for single-person installation with no specialized tools beyond a screwdriver.
Can I retrofit a T12 fixture with magnetic ballast to LED?
Yes. The Jarvis JSK magnetic strip kit and SRK linear strip retrofit both bypass the existing ballast entirely. The old ballast is disconnected and the LED kit wires directly to line voltage (100-277V). This eliminates the ballast as a failure point and removes the ongoing energy waste of aging magnetic ballasts, which can draw 15–25% more power than their rated wattage as they age.
Will the retrofit kit fit my existing fixture?
The Jarvis JSK magnetic troffer strip kit fits 99.9% of existing 2×2 and 2×4 fluorescent troffers — the magnetic clips attach to any steel fixture body regardless of manufacturer. The SRK linear strip retrofit fits standard 4ft fluorescent strip fixtures including T8 and T12 housings. A single SRK retrofits most single or twin-lamp fixtures, and two SRK units mounted end-to-end retrofit an 8ft T12 fixture.
Do Jarvis retrofit kits support dimming and sensors?
Yes. All Jarvis LED retrofit kits include 0-10V dimming as standard — no additional cost. The JSK and SRK-N series are compatible with Jarvis PhotoMotion occupancy sensors for automatic dimming and on/off control. This meets ASHRAE 90.1 requirements for automatic lighting controls in commercial retrofit projects.
Are LED retrofit kits eligible for utility rebates?
Yes. Jarvis LED retrofit kits are DLC-qualified, which is required by approximately 80% of U.S. utility rebate programs. Typical rebates range from $10 to $40 per fixture for indoor retrofits. For ESCO projects with 50+ fixtures, Jarvis provides bulk rebate documentation packages including DLC product IDs and pre/post wattage calculations.
What is the difference between JSK, SRK, and JTRFRK retrofit kits?
JSK is a magnetic strip kit for troffers — fastest install, lowest cost, strips snap into existing housing with magnetic clips. SRK/SRK-N is a linear strip retrofit for fluorescent strip fixtures — mounts to the existing fixture body and hides original components behind a new diffuser. JTRFRK is a complete troffer retrofit luminaire — slides into the existing troffer housing with a new diffuser panel, providing the most visually clean result. Choose JSK for speed and volume, SRK for strip fixtures, JTRFRK for appearance.
What energy savings can I expect from a fluorescent-to-LED retrofit?
A 2×4 T12 troffer with magnetic ballast (~140W) drops to 24W with a JSK kit — 83% reduction. A 3-lamp T8 troffer (~99W) drops to 30–45W with JTRFRK — 55–70% reduction. A 4ft 2-lamp T8 strip (~66W) drops to 18–40W with SRK-N — 39–73% reduction. Additional savings of 30–50% are achievable by pairing retrofit kits with occupancy sensors in intermittently occupied spaces.

Need help specifying fixtures?

Work directly with Jarvis application engineering for fixture schedules, photometrics, and rebate-ready recommendations.

Contact Engineering
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