Cooker hood bulbs: types and how to replace them

A cooker hood bulb works in steam, grease and heat, and bulb types vary between models. How to identify the type, replace it safely and what to check when choosing LED.

A cooker hood bulb is a small detail, but you notice at once when it fails: the hob goes dark and it is hard to see into the pan. This bulb works in different conditions from a room light, with hot steam and grease particles rising from below and temperatures that can climb considerably. So before replacing a failed bulb, you need to know exactly what type it is and choose a replacement suited to those conditions.

Bulb types found in cooker hoods

Depending on the model and its age, hoods use several kinds of lamp:

• Small screw-in bulb (usually E14). Common in older and simpler models, a small incandescent bulb behind a clear or frosted cover.
• Halogen capsule (G4 or similar). A very small lamp with two thin pins, often running at low voltage from the hood’s own transformer.
• Flat halogen spot (such as GU4/MR11 or GU5.3/MR16). Small reflector lamps recessed into the underside of the hood.
• Integrated LED module. In modern hoods the LED is often not a separate bulb but a board or panel replaced as a complete module.

The most reliable way to find out the type is the hood’s instruction manual. If you do not have it, the model name is usually on a label behind the grease filter. With that model name, the manufacturer’s website or a service centre can confirm the right lamp type. Taking the old bulb to the shop also prevents buying the wrong one.

Replacing the bulb safely

The steps are generally:

1. Switch the hood off and, if possible, disconnect it from the supply by unplugging it or switching off the circuit breaker.

2. If a halogen or incandescent bulb has just been on, wait for it to cool completely.

3. Often the grease filter has to come out first to give access to the lamp.

4. Remove the lamp cover as described in the manual; some twist off, others are carefully levered out with a small flat tool.

5. Take out the old bulb. Do not handle a halogen capsule or flat spot with bare fingers, as skin oil creates hot spots on the glass. Use a cloth or gloves.

6. Fit the new bulb, replace the cover and filter, then test the light.

Where an integrated LED module is involved, or access to internal wiring is needed, leave the job to a service technician.

Switching to LED: what to check

Replacing an old incandescent or halogen bulb with LED reduces both consumption and the heat inside the hood. But in these conditions a few points matter especially:

• Temperature. The hood sits right above the hob, and LED electronics are sensitive to heat. The lamp must be suitable for use in this kind of appliance; if in doubt, use the lamp the hood manufacturer recommends.
• Size. An LED bulb can be longer than an incandescent one with the same cap, and the cover may not close. Measure the old bulb.
• Transformer. In a hood with a transformer for low-voltage halogen lamps, a low-wattage LED may flicker or not light. If that happens, ask the service department about compatibility.
• Voltage. Never put a 12 V lamp in a 230 V circuit or vice versa. Always check the voltage of both the lamp and the holder.
• Light colour. Warm or neutral white light helps you see the true colour of food on the hob; very cool light makes food look pale.

Making the bulb last longer

Grease and heat are among the reasons hood bulbs fail early. Cleaning the grease filter regularly, wiping grease off the lamp cover and running the hood for a while after cooking protect both the bulb and the appliance. Grease on the cover also dims the light, so a clean cover means more light from the same bulb.

A hood light is there to light the hob, not to replace general kitchen lighting. The worktop needs its own under-cabinet lights or ceiling fittings.

For the kitchen’s ceiling and under-cabinet fittings, rather than the hood itself, the E27 and E14 LED bulbs in the Zəfər İşığı catalogue are an option. The final word on a hood bulb’s type and wattage always belongs to the appliance manual.