Replace the Fixture Cover

What happens in this clip

After confirming that the new bulbs are working, replace the diffuser (cover) of the fixture. Hold the cover up to the fixture, aligning one long edge with its slot. Gently push the cover upwards and slide it to center it, allowing the other long edge to fit into its corresponding slot. Ensure the cover is securely seated on all sides to prevent it from falling.

Goal: Securely reattach the diffuser to the light fixture

About the full video

This project provides a comprehensive guide on how to change fluorescent light bulbs in an externally mounted fixture, identify the correct bulb type, troubleshoot common issues like flickering lights, and consider modern LED alternatives. It details steps for safely removing the fixture's cover, replacing the bulbs, and testing the fixture.

Step 5 of 7: Reattach the light fixture cover

Align the light fixture cover with the fixture base. If it uses screws, insert and tighten them until the cover is secure but not overly tight. If it's a twist-lock type, align the tabs or slots and twist clockwise until it locks into place. Ensure it is firmly attached.

Open this step in the guide

Every video in How to Remove a Ceiling Light Cover to Change the Bulbs

1. Step 1: Turn off power to the light fixture

   • 0:50–1:05 Turn Off Power at Circuit Breaker
   • 0:47–0:52 Turn Off Power at Circuit Breaker
   • 0:03–0:05 Shut Off Power to the Circuit

2. Step 2: Remove the light fixture cover

   • 1:50–2:38 Remove Old Light Fixture Glass Cover and Bulbs
   • 1:03–1:50 Remove Light Fixture Cover
   • 0:17–0:23 Remove Light Bulb Cover and Bulbs

3. Step 3: Remove old light bulbs

   • 0:34–0:50 Unscrew Old Bulb
   • 1:50–2:05 Remove Light Bulbs
   • 0:38–1:04 Remove the Old Bulb

4. Step 4: Install new light bulbs

   • 1:15–1:30 Install New Light Bulb
   • 1:04–1:12 Install the New Bulb
   • 0:26–0:31 Install the New Light Bulb

5. Step 5: Reattach the light fixture cover

   • 6:11–6:23 Replace the Fixture Cover (this video)
   • 0:57–1:08 Reinstall Dome Light Cover
   • 0:55–1:09 Install the Light Cover

6. Step 6: Restore power to the light fixture

   • 10:35–10:39 Restore Power and Test the New Fixtures
   • 2:59–3:02 Restore Power
   • 2:11–2:21 Restore Power and Test

7. Step 7: Test the light fixture

   • 9:22–9:55 Restore Power and Test
   • 8:04–8:19 Restore Power and Test
   • 2:47–2:52 Test New Light Fixture