Nimbus GU10 3.7W LED Bulb — Dimmable, CRI90, 2700K Very Warm White
£5
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Colour Temperature
Warm White
2700K
2000K
3500K
4500K
6500K
Energy Rating
A
B
C
D
E
F
◀ This productG
Light Output
350
lumens
Efficiency
9.4 lm/W
Power
37W
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Light Bulbs
Nimbus GU10 3.7W LED Bulb
Dimmable, CRI90, 2700K Very Warm White — Gentle warmth for restful corners
£5Includes VAT
Colour temperature
Secure checkout
Estimated delivery
7 – 9 September
Quality-checked before dispatch · Free UK delivery over £75
Key features−
Key Features
Dimmable 3.7W LED replaces 50W halogen, slashes energy bills
CRI90+ renders colours beautifully, superior to standard LEDs
Very warm 2700K glow mimics traditional halogen perfectly
Smooth dimming with leading edge dimmers, flicker-free
Five year warranty for complete peace of mind
Glass5 yr warranty30-day returns
Delivery & Returns
Ordered in for you — we hold no warehouse stock. Every light is supplied direct from its maker, and made-to-order pieces are hand-finished before dispatch. Each product shows its own delivery estimate above.
UK mainland delivery — FREE on orders over £75, £7.95 below.
Returns — free within 30 days. Item must be unused and in original packaging.
What's in the Box
Product Care Guide
Plaster
Dust with a soft, dry cloth only. Plaster is porous, so avoid all liquid cleaners — they'll stain or mark the surface. Raw plaster fittings can be painted: use a matte emulsion in two thin coats, allowing each to dry fully before powering on. Don't install in bathrooms or other damp areas unless the IP rating allows it.
Brass & metal
Brass develops a natural patina over time, which most people prefer. To keep the current finish, wipe gently with a soft, dry cloth. For a brighter look, use a brass-specific polish sparingly. Never use lemon, vinegar, or abrasive cleaners — these damage lacquered brass irreversibly. Polished chrome and nickel finishes can be wiped with a damp microfibre cloth.
Glass
Wipe with a soft, damp cloth and dry thoroughly to avoid water marks. For stubborn marks, a mild glass cleaner is fine. Always ensure the fitting is switched off and fully cool before cleaning.
Fabric shades
Dust with a soft brush or vacuum on the lowest setting using an upholstery attachment. Avoid wet cleaning — fabric shades can stain, warp, or shrink. Spot-clean small marks only with a barely-damp microfibre cloth.
Ceramic
Glazed ceramic can be wiped with a soft, damp cloth and a mild soap solution. Unglazed or matte ceramic should be kept dry and dusted only. Always ensure the fitting is switched off and cool first.
Before you clean
Switch off at the wall and let the fitting cool fully. Never spray cleaner directly onto a fitting — apply to a cloth first. If your fitting has visible wiring, electrical components, or LED drivers exposed, keep moisture well away from these areas.
SKU: BUL-WHT-0468
01
The Warmth You Remember
Very Warm 2700K
Golden halogen-like glow for cosy evenings
High CRI 90+
True-to-life colour rendering for fabrics and finishes
Fully Dimmable
Smooth dimming on standard TRIAC dimmers
02
The fitting
- Material
- Glass
- Lampholder
- GU10
- Warranty
- 5 years
Full specification
Physical
- Finish
- Frosted
- Height
- 54 mm
- Weight
- 0.04 kg
Electrical
- Wattage
- 37 W
- Bulb included
- No — sold separately
- Dimmable
- Yes · Leading edge (TRIAC)
- Voltage
- 220-240V
Light output
- Brightness
- 350 lumens
- Colour temperature
- 2700K
- Efficacy
- 94.6 lm/W
- Energy rating
- F
Installation
- Electrician
- Recommended — hardwired
Compliance
- Certification
- CE · RoHS
Cover
- Returns
- 30 days
- Pack quantity
- 1
03
Focused Directional Spotlight
Delivers a concentrated beam of warm light ideal for accent lighting, picture illumination, or task zones. The frosted lens softens the beam edges whilst maintaining directional punch, perfect for spotlighting features or creating pools of cosy light in living spaces and bedrooms.
- Direction
- Directional spotlight
- Mounting height
- Ceiling height
Works well in
- Living Room
- Bedroom
- Dining Room
- Hallway
- Kitchen
- Home Office
- Restaurant
04
Why we chose it
CHOSEN, NOT STOCKED
Chosen for its proportions, its finish and the quality of its light — a quiet, architectural line that earns its place at any price.
Selected by Enso for proportion, finish and light quality — and checked before it was allowed to stay.
Finish, inspected
Coating depth, seam lines and edges checked against a reference sample before listing.
Safety, certified
CE marked and RoHS compliant — documentation held on file.
Light, measured
Beam spread and colour temperature checked for a warm, even light with no flicker.
Backed, in writing
Covered by the Enso warranty and 30-day returns — the same promise as every light we sell.
05
What's involved
Electrician required
Wall fixingsScrews and plugs for these surfaces are supplied in the box. For plasterboard without a stud behind, use a suitable cavity fixing rated for the weight.
In the box1× GU10 LED bulb
1× Instruction leaflet
1× Instruction leaflet
06
Questions
What type of dimmer switch do I need for this GU10 LED bulb?
This bulb requires a leading edge (TRIAC) dimmer switch to function properly. Standard rotary or trailing edge dimmers may cause flickering or buzzing. If you're unsure what type of dimmer you currently have, check the manufacturer's specifications or consult a qualified electrician before installation.
How bright is 350 lumens and what room size is it suitable for?
At 350 lumens, this bulb produces gentle, ambient lighting comparable to a traditional 35W halogen. It's ideal for accent lighting, bedside lamps, or smaller sitting areas where you want a warm, cosy atmosphere rather than bright task lighting. For general room lighting, you'll likely need multiple bulbs across several fittings.
Will this bulb fit standard GU10 spotlight fittings?
Yes, the Nimbus has a standard GU10 base and will fit any GU10 spotlight or downlight fitting. At 54mm in height, it fits comfortably within most recessed ceiling housings. Simply push and twist to install — no electrician required for bulb replacement.
What does CRI 90+ mean and why does it matter?
CRI (Colour Rendering Index) measures how accurately colours appear under a light source, rated from 0 to 100. This bulb's CRI90+ rating means fabrics, wood finishes, and skin tones look natural and true to life, unlike cheaper LEDs that can make colours appear washed out or distorted. It's particularly noticeable in living spaces with textiles and natural materials.
Can I use this GU10 LED bulb in a bathroom?
The bulb itself has no IP rating specified, so it should only be installed in bathroom fittings that are appropriately rated and positioned according to bathroom zone regulations. The fitting (not the bulb) must provide the necessary splash or moisture protection depending on its proximity to water sources.
What warranty does this LED bulb come with?
The Nimbus GU10 LED bulb is covered by a 5-year manufacturer warranty against defects in materials and workmanship. This provides long-term peace of mind, though with LED technology you can expect many years of reliable use under normal operating conditions.
The Enso Standard
Anyone can sell you a light.
We’d rather sell you the right one.
Lighting, considered.
01
Chosen, not stocked
For every piece here, we passed on hundreds. If a fitting doesn’t earn its place, it isn’t here.
Curation is mostly the art of saying no.
02
Held to one standard
Copenhagen brass or precision-built LED — every piece is vetted the same way: finish, build, light quality, safety. If it doesn’t pass, it doesn’t stay.
The standard doesn’t care what a light costs.
03
Nothing left to guess
Every dimension, bulb, IP rating and install note published before you buy — you and your electrician know exactly what arrives.
The spec sheet is the love letter.
04
Backed, properly
Two-year warranty as standard, 30-day returns. If something isn’t right, we’d rather know — and put it right.
A fitting should outlast the fashion that chose it.