If the bulb in a square ceiling light becomes damaged, it can be removed and replaced according to the two main installation methods: snap-fit and magnetic attachment.
First, check how your ceiling light is secured; most domestic square ceiling lights are of either the clip-on or magnetic attachment type. For clip-on models, you must first switch off the power supply. Locate the notches on the edges of the light panel, gently pry open the clips with a flat-head screwdriver, and flip the panel outwards to reveal the connected wires. Once you have disconnected the terminals, you can remove the light module. If it is a magnetic-mount model, simply use a suction cup hook or a flat tool to gently pry along the edge of the light panel. This will allow you to remove the entire lamp module directly; then, disconnect the power cable and replace it with a new lamp.
1. Disconnecting the power supply is the first essential step
Before dismantling, you must always disconnect the main power supply or switch off the circuit breaker for the relevant room to avoid the risk of electric shock; do not take any chances, even with low-voltage LED lamp cores.
2. Details on dismantling snap-fit ceiling light lamp cores
These lamp cores usually have 2–4 plastic snap-fits around the perimeter. First, carefully examine the edge of the light panel; you will notice small raised notches. Take a flat-bladed screwdriver, wrap it in a soft cloth to prevent scratching the ceiling, and gently pry the clips open at the notches. Flip the light panel towards you until you can see the terminal blocks on the back. Once you have disconnected the quick-connect terminals, you can remove the entire light module. When installing the new light module, align it with the clips and press firmly; it is securely fixed once you hear the clips click into place.
3. Details on removing the lamp core from magnetic ceiling lights
The back of the lamp core in magnetic models features a strong magnet that attaches directly to the metal base of the light fitting, requiring no tools. You can place the palm of your hand against the light panel, gently wiggle it and then pull it outwards, or use a suction cup hook to grip the edge of the light panel and gently pry it open, allowing you to remove the lamp core with ease. Similarly, simply disconnect the terminals and replace it with a new module. This type of fixture is simpler to replace and is suitable for users with limited DIY skills.
Once the replacement is complete, restore the power supply and test the light. After confirming that the light is working properly, tidy up the ceiling panel. If the lamp module comes with a dedicated driver, remember to check that the driver is functioning correctly as well, to avoid the new lamp module failing to light up due to a fault with the driver.
If you are undertaking residential or project‑based lighting renovation, feel free to contact us. We can provide selection advice and full specifications for high‑quality bulkhead lights according to your site conditions.
