If you're still running T8 or T12 fluorescent fixtures, here's exactly what it's costing you and what you gain by switching to LED today.
Get a Free Upgrade QuoteLED shop lights use roughly 38% less power than T8 fluorescent, last 3 to 5 times longer (50,000 to 100,000 hours vs 10,000 to 20,000), produce no mercury waste, and cost less over five years despite a higher upfront price. Fluorescent still wins on upfront cost only. For commercial shops, LED typically pays back in 18 to 36 months.
| Category | T8 Fluorescent | LED Equivalent | Winner |
|---|---|---|---|
| Power Consumption (4ft fixture) | 64W (2-lamp T8 + ballast) | 40W LED | LED (38% less power) |
| Rated Life | 10,000-20,000 hrs | 50,000-100,000 hrs | LED (3-5x longer) |
| Lumen Output (4ft, 2-lamp) | ~5,200 lumens | ~5,000 lumens | Tie |
| Cold Temperature Performance | Flickers and dims below 50°F | Instant-on at -40°F | LED |
| Mercury Content | Yes (hazmat disposal required) | None | LED |
| Warm-Up Time | Instant (but flickers) | Instant, no flicker | LED |
| Ballast Failure | Common failure point | No ballast | LED |
| CRI (Color Rendering) | 75-85 | 80-95+ | LED |
| Dimming Compatibility | Requires special dimming ballasts | 0-10V dimming standard | LED |
| Maintenance Cost | Lamp + ballast replacement | Minimal over fixture life | LED |
| Upfront Cost | Lower | Higher | Fluorescent |
| 5-Year Total Cost | Higher (energy + maintenance) | Lower | LED |
Upfront cost is where fluorescent wins. Total cost is where LED wins by a wide margin.
Based on a 4-foot 2-lamp T8 fixture running 10 hours/day:
Based on a 4-foot 40W LED replacing the same fixture:
On a 100-fixture shop or warehouse space, that difference is $7,700+ saved over 5 years in energy and maintenance alone, before counting utility rebates.
Fluorescent lamps contain mercury and are classified as hazardous waste. The EPA's updated TSCA regulations are tightening disposal requirements, and several T12 lamp types are already prohibited from sale in the US. T8 restrictions are coming.
Utilities across Michigan and the Midwest are aggressively incentivizing commercial LED upgrades with rebates of $20-100+ per fixture. This is effectively subsidizing your LED payback period, making the switch more compelling every year.
LED fixture prices have fallen 70-80% over the past decade. The price premium over fluorescent is now small enough that most facilities break even in 18-36 months, even without rebates. There's no longer a meaningful financial case for staying on fluorescent.
Yes, but with important caveats. There are three types of LED T8 tubes: Type A (plug-and-play, uses existing ballast), Type B (bypasses ballast, direct wire to line voltage), and Type A+B (works both ways). Type A is easier to install but relies on the existing ballast, which will eventually fail. Type B eliminates the ballast and provides better long-term reliability. For commercial and industrial applications, we generally recommend Type B or full fixture replacement for best results.
Yes, in most cases. LED fixtures typically offer CRI of 80-95 versus 70-85 for standard T8 fluorescent. Higher CRI means colors appear more accurate and true. LED light is also more consistent across the fixture's life, while fluorescent lamps progressively dim (lose 20-30% output before they're technically "failed").
Quality LED fixtures do not flicker at visible frequencies. The flicker in fluorescent lighting (operating at 60 or 120 Hz) can cause headaches and eye strain with extended exposure. LEDs operate at much higher frequencies using quality drivers, eliminating perceptible flicker. For video production or camera environments, look for fixtures with a flicker-free driver specification.