Can I replace fluorescent tubes with LED tubes?

Yes, you can replace fluorescent tubes with LED tubes, and it's one of the best lighting upgrades you can make — better light quality, lower energy bills, and far less maintenance.

That said, there are a few important things to understand before you buy, because not all LED tubes work the same way in existing fluorescent fixtures.

The Three Types of LED Tube Replacements

Type A (Plug-and-Play) tubes are designed to work directly with your existing fluorescent ballast — no rewiring needed. You simply swap the tube. The catch is that these only work with compatible ballasts, and your ballast will eventually fail (usually within a few years), leaving you with a dead fixture again. Check the tube packaging carefully for ballast compatibility.

Type B (Ballast Bypass) tubes require rewiring the fixture so the LED tube runs directly off line voltage, bypassing the ballast entirely. This is the better long-term solution — you eliminate the ballast as a failure point and get better efficiency. However, because you're working with line voltage inside the fixture, this is where most homeowners should pause and consider calling a professional.

Type A+B (Hybrid) tubes work both ways — with a ballast or bypassed. These offer flexibility but tend to cost more.

What Homeowners Can Safely Do

Swapping a Type A plug-and-play tube is similar to changing a light bulb — power off at the switch, swap the tube, done. This falls within what most homeowners can reasonably handle safely. Always turn off the power at the switch (and ideally the breaker) before touching any fixture.

Ballast bypass (Type B) is a different story. You're opening the fixture and rewiring it to connect directly to your home's wiring. While it's not a complex job for an electrician, doing it incorrectly can create a shock hazard or a fire risk — and if something goes wrong, your insurance company will ask questions. In Ontario, rewiring a fixture goes beyond simple like-for-like replacement, so if you're unsure, it's worth having a licensed electrician handle it.

Ottawa-Specific Considerations

If you're upgrading lighting in a commercial space or doing a larger retrofit (multiple fixtures, new circuits for LED panels), an ESA permit may be required depending on the scope of work. For simple residential tube swaps, you're generally in the clear — but if you're adding new fixtures or circuits, that's permit territory.

In terms of cost, if you'd like a licensed electrician to handle a ballast-bypass retrofit on multiple fixtures, expect roughly $75–$150 per fixture for labour, which pays for itself quickly given the energy savings LEDs deliver.

For a free estimate on a larger lighting upgrade, feel free to reach out to Electrical Ottawa — we handle everything from simple retrofits to full commercial LED conversions across Ottawa and the surrounding area.