E27 Dimmable LED Bulb — 36, 54 or 72 LEDs, Trailing Edge Dimmer Compatible
An E27 LED bulb with trailing edge dimmer compatibility, available in three LED densities: 36, 54, or 72 LEDs. Select the LED count to match your required light level. Voltage: 220–240V standard mains.
Technical specifications
| Light source | Integrated LED — fixed, non-replaceable |
| Base / Socket | E27 (large Edison screw) |
| LED count options | 36 LEDs / 54 LEDs / 72 LEDs |
| Dimmable | Yes — trailing edge (LED) dimmer required |
| Voltage | 220–240V (standard mains) |
| IP rating | IP20 — indoor use only |
| Certifications | CE, RoHS, CCC |
| Connection | E27 screw fitting — direct replacement |
E27 Dimmable LED — Adjustable light level, three output options, one dimmer requirement
Most LED bulbs in this range are not dimmable — this one is. That distinction matters in rooms where you want to adjust the light level: a living room that shifts from bright for reading to dim for evening relaxation, a dining room where the mood changes between meals and entertaining, or a bedroom where a lower light level in the evening supports sleep. The three LED count options (36, 54, 72) allow you to set the maximum output before dimming: 36 LEDs for a softer, lower-output fitting; 54 LEDs as a balanced all-round choice; 72 LEDs for the highest output with the widest dimming range. Dimming requires a trailing edge (LED-compatible) dimmer switch — traditional leading edge dimmers are not compatible and will cause flickering or buzzing. If you are unsure which type of dimmer you have, check with an electrician before ordering.
The E27 base makes this a direct replacement for any existing E27 bulb in a dimmer-controlled fitting. If your current dimmer switch was installed for incandescent or halogen bulbs, it is likely a leading edge dimmer and will need to be replaced with a trailing edge model before this bulb will dim correctly — a straightforward job for an electrician. For advice on setting up a dimmable lighting scheme in a living room or bedroom, see our home lighting ideas guide or browse the full LED bulbs collection.
Common questions
How do I know if my dimmer switch is trailing edge or leading edge?
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Leading edge dimmers (also called resistive or inductive dimmers) were designed for incandescent and halogen bulbs and are the most common type in older installations. Trailing edge dimmers (also called capacitive or LED dimmers) are designed for LED and low-energy bulbs. The easiest way to check is to look at the dimmer switch itself — it will usually be labelled “LED compatible” or “trailing edge” if it is the correct type. If there is no label, check the model number with the manufacturer or ask an electrician. Using a leading edge dimmer with this bulb will cause flickering and may shorten the bulb’s lifespan.
Which LED count should I choose — 36, 54 or 72?
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The LED count determines the maximum output before dimming. 36 LEDs suits accent or decorative fittings where a lower maximum is appropriate. 54 LEDs is the most versatile option — enough output for a bedroom or small living room, with a useful dimming range. 72 LEDs gives the highest output and the widest dimming range, making it the best choice for larger rooms or fittings where you need strong light at full brightness and the ability to dim significantly for evening use.
Will this bulb flicker at low dim levels?
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With a compatible trailing edge dimmer, this bulb should dim smoothly without flickering. Some flickering at very low dim levels (below 10–15%) is normal for LED bulbs and is not a fault. If flickering occurs at mid-range dim levels, the most common cause is an incompatible dimmer switch. Replacing the dimmer with a trailing edge model rated for LED loads will typically resolve the issue.
Can I use this bulb without a dimmer switch?
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Yes — this bulb works normally on a standard on/off circuit without a dimmer. The dimmable feature is available when used with a compatible trailing edge dimmer, but it is not required. If you install it in a non-dimmed fitting, it will simply operate at full brightness.
Is this bulb suitable for a bathroom or outdoor fitting?
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No — this bulb is rated IP20, which means it is suitable for dry indoor environments only. It is not suitable for use in bathroom zones 1 or 2 (areas exposed to water or steam), or in outdoor fittings. For bathroom or outdoor use, you need a bulb with a minimum IP44 rating.
Browse the full LED Bulbs collection or read our home lighting ideas 2026. Free delivery on orders over €50. 30-day returns.
