Step-by-Step Guide: How to Install Tube Light on Wall

Gregory Jul 01, 2026

Installing a tube light on your wall might seem like a daunting task, but with the right steps and a bit of patience, you can illuminate your space safely and efficiently. This guide will walk you through the process, from gathering materials to securing the fixture in place.

How to Install Led Tubes
How to Install Led Tubes

Before you begin, ensure you have the necessary tools and materials. You'll need a tube light fixture, light bulbs, a drill, screws, an electrical box, wire connectors, and electrical tape. Safety is paramount when working with electricity, so make sure to turn off the power at your circuit breaker and use a non-contact voltage tester to confirm the wires are dead.

TUTORIAL: DIY LED Tube Lights
TUTORIAL: DIY LED Tube Lights

Preparation and Planning

Before you start, plan where you want your tube light to be installed. Consider the room's layout, furniture placement, and where you need the most light. Once you've decided on the location, mark the center point on the wall where the electrical box will go.

How to Install Light Tube
How to Install Light Tube

Next, measure and mark the length of your tube light fixture on the wall. This will help you determine if you need to cut the fixture to fit the space. If you do, make sure to use a hacksaw or tube cutter to create a clean, straight cut.

Electrical Box Installation

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How to Tube Light repair 💡 #tubelightrepair #shorts #light #ledlightrepair #ledlight

With your location marked, it's time to install the electrical box. If your wall is drywall, you'll need to use a drywall saw to cut out a square opening that's slightly larger than the electrical box. For other wall types, you may need to use a different cutting method.

Once you've cut the opening, insert the electrical box and secure it in place using screws. Make sure the box is level and flush with the wall. Next, feed the electrical wires through the box and strip about an inch of insulation from the ends using wire strippers.

Wiring the Tube Light Fixture

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How to Install Wall Sconce Lighting | ehow.com

Now that your electrical box is installed and wired, it's time to connect your tube light fixture. Start by connecting the black (hot) wire from the electrical box to the black wire on the fixture. Then, connect the white (neutral) wire from the box to the white wire on the fixture. Finally, connect the green or bare copper wire (ground) from the box to the ground wire on the fixture.

Use wire connectors to secure the connections, ensuring they're tight and no wires are exposed. Wrap each connection with electrical tape for added protection. Once all wires are connected, gently bend the fixture back into shape if you had to cut it earlier.

Mounting the Tube Light Fixture

easily tube light New
easily tube light New

With the wiring complete, it's time to mount the tube light fixture to the wall. Position the fixture over the electrical box and mark the mounting holes on the wall. Use a drill bit that's slightly smaller than the screws provided with the fixture to drill pilot holes into the wall.

Insert the screws through the fixture's mounting holes and into the pilot holes. Tighten the screws securely, but be careful not to overtighten and strip the screws or damage the fixture.

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Installing the Light Bulbs

Now that your tube light is securely mounted, it's time to install the light bulbs. Choose bulbs that fit your fixture and have the appropriate wattage. Most tube lights use T8 or T12 bulbs, which are 1-inch or 1.5-inch diameter fluorescent bulbs, respectively.

Insert the bulbs into the fixture, making sure they're fully seated in the sockets. Once both bulbs are in place, gently twist the fixture back into position and secure it with the set screw or locking mechanism.

Testing the Tube Light

Before you turn the power back on, double-check that all wires are securely connected and no wires are exposed. Then, turn the power back on at your circuit breaker and test the tube light by flipping the light switch.

If the light turns on and illuminates evenly, you've successfully installed your tube light. If not, double-check your connections and ensure the bulbs are inserted correctly.

Congratulations on installing your tube light! With this new source of illumination, you can now enjoy a well-lit space that's perfect for work, relaxation, or entertaining. If you ever need to replace the bulbs or make adjustments, simply follow these steps in reverse order. Happy lighting!