If you've ever had an outdoor light die at the worst possible time, you know that sinking feeling. The fixture is dark, the client is waiting, and the clock is running. In my role coordinating emergency lighting replacements, I've handled over 200 rush calls in the last two years—some with a 24-hour deadline, some with a window of about two hours.

Here's the thing: there's no universal answer. The right move depends on whether the bulb is dead, the fixture is dying, or the whole situation just needs a temporary workaround. Pick wrong and you'll pay twice—once in labor, once in the “why did I do that?” feeling.

So let's break it into three scenarios. Each one has a different playbook.

Start Here: Which Situation Are You In?

  • Situation A: The bulb is burnt out, but the fixture itself is in good shape. Swap the bulb.
  • Situation B: The fixture is old, corroded, or inefficient. Retrofit it.
  • Situation C: You need light tonight and the real fix can't happen tonight. Use a temporary spotlight.

Scenario A: Swap the Bulb (When the Fixture Is Fine)

This is the simplest case. If the fixture is physically sound and the only problem is the light source, then yes—change the bulb. No need to overthink it.

How to Open an Outdoor Light Fixture to Change a Bulb

This part is often harder than people expect. Outdoor fixtures seize up. Screws rust. Gaskets stick. But the basic process is the same in most cases:

  1. Kill the power at the breaker. Not just the wall switch. I know it seems obvious, but I've still got a story from the time someone didn't. Thirty seconds of caution beats an unpleasant surprise.
  2. Find the access point. Some fixtures have a hinged glass panel, some have a ring that unscrews, and some use small screws on the side. If there's a visible screw, use the right driver and press firmly. Stripping that screw will make a simple job miserable.
  3. If it's stuck, don't pry with a screwdriver. Spray a penetrating oil and wait a few minutes. Prying is how glass cracks and gaskets tear.
  4. Replace with the same bulb type and wattage. If the label is gone, check the socket or take the old bulb to your supplier. Guessing is a fast way to create heat problems.

One more thing: if you've cut power, opened the fixture, and see black marks around the socket or a cracked lens, don't just change the bulb. That's not a bulb problem. That's an electrical or moisture problem, and it needs a closer look.

Now for the part that feels counter-intuitive: if this is the third bulb in 18 months, the fixture is probably the problem. A new bulb is cheap. Climbing a ladder, scheduling a service visit, and risking a leak every few months is not. The $5 bulb becomes a $75 problem every time it fails. At some point, you're not saving money—you're just postponing the decision.

Scenario B: Retrofit the Fixture (When the Fixture Is the Problem)

If the fixture is corroded, yellowed, leaking, or running an old light source that keeps failing, swapping bulbs is whack-a-mole. This is where a retrofit kit is often the smarter move.

A Feit Electric retrofit kit replaces the internal light engine while keeping the existing housing. You get LED efficiency and a much longer service life without pulling the whole fixture and rewiring. According to the U.S. Department of Energy (energy.gov), LED lighting uses at least 75% less energy and lasts up to 25 times longer than incandescent options. That's not a knock on older fixtures—it's just why a retrofit can be a better investment than another bulb.

Sometimes the retrofit goes beyond one fixture. If the layout is missing light in spots—under an eave, along a walkway—a Feit Electric LED strip light can fill the gap without new conduit. It's not needed in every job, but it's a useful option when you're already on site and you don't want to leave a dark corner.

Let's do the math, because “total cost” sounds like a buzzword until you write it down. A retrofit kit might run $20 to $60 per fixture (based on online lighting supplier listings, March 2025; verify current pricing). A replacement bulb might be $8. But if the bulb lasts 3,000 hours and the retrofit kit lasts 25,000 hours, the kit is cheaper per hour—and you save on labor every time a bulb dies. Price per hour, not per unit.

Honestly, I used to be the guy who grabbed the cheapest bulb and hoped for the best. Then we replaced the same parking lot fixture twice in one season. After the second service call, we ran the numbers. The retrofit paid for itself before summer ended. That's when I started looking at total cost instead of sticker price.

I can only speak to our context, though. We're a mid-size service company with predictable commercial clients. If you're dealing with a one-off fixture at your own house, a $60 retrofit kit might not make sense. Your mileage may vary, and that's fine.

Scenario C: Use a Temporary Spotlight (When You Need Light Tonight)

This happens more often than you'd think. A ballast dies at 6 PM. The replacement part won't arrive until Thursday. Or a security light goes out and the client hasn't approved the repair yet. In those cases, the fastest solution isn't a permanent fix—it's a temporary light that gets you through the night.

A portable spotlight, like a Dorcy spotlight or a Spotlight Inc. work light, can be set up in minutes and aimed where you need it. Not ideal, but workable. It's not a permanent solution, and I won't pretend it is. But it can buy you time without making a bad situation worse.

One tip: if you're aiming a temporary spotlight, position it so it doesn't create dark shadows where someone could trip. Sounds minor, but a bad aim can turn a safety feature into a hazard.

The trap is leaving it there too long. Temporaries have a way of becoming permanents. I've seen a “two-day” spotlight still running six months later, with a higher energy bill and a lot of glare. So if you go this route, put a reminder on your calendar. Treat it like a bandage, not a skin graft.

How to Know Which Scenario You're In

Here's the three-question filter I use when I'm triaging an urgent call:

  • Is the fixture physically intact and not that old? → Scenario A. Change the bulb and move on.
  • Is the fixture corroded, inefficient, or constantly failing? → Scenario B. Start planning the retrofit, even if you need a temporary light in the meantime.
  • Can the fixture be fixed tonight? If not, and the area needs light now → Scenario C. Set up a temporary spotlight, then schedule the real repair.

No rule is universal. A fixture near the ocean will corrode faster than one in the desert. I can't give you a fixed “replace every X years” number, because the environment matters too much. But the framework holds: know whether you're fixing a bulb, a fixture, or a deadline.

There's something satisfying about walking past a parking lot at 11 PM and seeing a light that's been running for six straight months without a flicker. After the stress and the coordination, that's the payoff. It starts with choosing the right scenario instead of just grabbing the nearest bulb.