LED Retrofit vs Replacement: Which is Better?

Retrofit vs. New Fixture: The Decision Framework

The choice between retrofitting existing fixtures with LED kits and replacing them with new LED fixtures depends on several factors. Here's how to make the right call for your project.

What is an LED Retrofit Kit?

A retrofit kit replaces the internal components (lamp, ballast, driver) of an existing fixture while keeping the housing. Common types:

Type A (Plug and Play): LED tube replaces fluorescent tube, uses existing ballast

Type B (Ballast Bypass): LED tube connects directly to line voltage

Type C (External Driver): New LED driver replaces the ballast

Magnetic LED Panels: Mount inside existing troffers

When to Retrofit

Choose retrofit when:

- Existing fixtures are in good physical condition

- Budget is tight (retrofit is typically 30-50% cheaper)

Minimal disruption is required (occupied spaces)

Ceiling grid would be damaged by fixture removal

- Project needs to be completed quickly

When to Replace

Choose full replacement when:

- Existing fixtures are damaged, corroded, or outdated

- You need better optical control or different distributions

Smart controls integration is required

Aesthetics are important (lobbies, retail)

Long-term warranty is a priority (new fixtures: 10yr vs retrofit: 5yr)

Cost Comparison

Factor	Retrofit	New Fixture
Material cost per fixture	$30-80	$80-250
Labor (per fixture)	15-30 min	30-60 min
Total installed cost	$60-130	$150-350
Typical warranty	5 years	10 years
Rebate eligibility	Sometimes	Usually

The Hybrid Approach

Many contractors use a hybrid strategy:

Retrofit fixtures in good condition in general areas

Replace fixtures in high-visibility areas and damaged locations

Add new fixtures where additional lighting is needed

This approach balances cost efficiency with performance optimization.

Making the Business Case

For building owners, present both options with clear ROI:

Retrofit: Lower upfront cost, faster payback, minimal disruption

Replacement: Better long-term value, improved aesthetics, full warranty coverage

Hybrid: Best of both worlds, maximizes budget allocation