Nimbus
pro GU10 6w LED bulb
True colour rendering for discerning interiors
- CRI97 — as honest as lamp colour gets
- 36° beam — a defined pool for artwork
- 3000K — warm without going yellow
Colour temperature3000K Warm White
- GU10 bulb, sold separately
- Dimmable
Estimated arrival 3 Nov to 5 Nov
Dispatched from 27 Oct · Tracked deliveryDelivery detailsEstimated arrival 23 Oct to 27 Oct
5 to 7 working days · Tracked delivery Delivery detailsguarantee
on unused lights

01 / The feeling
Colour, As It Should Be
This is the bulb for rooms where colour matters. With a CRI of 97+, it renders artwork, fresh ingredients, and fine fabrics in honest, natural light — the kind that makes a gallery wall sing or a dining table glow with appetite. The beam is focused at 36 degrees, perfect for spotlighting what deserves attention, while the dimmable warmth lets you shift the mood from crisp daytime clarity to intimate evening ambience.
Built to last 40,000 hours with exceptional dimmer compatibility, this 6W LED replaces an 80W halogen without the heat or the running costs. It dims smoothly with no flicker or warm-up delay, and colour consistency is held within 3 SDCM for perfectly matched light across multiple fittings. Choose the Nimbus for rooms where light does more than illuminate — it elevates.
- High CRI 97+Gallery-grade colour accuracy for art and interiors
- 575 LumensReplaces 80W halogen with crisp, focused light
- 5 Year WarrantyBuilt to last with full confidence
- 3000K
- Warm white
- 575
- Lumens
- 6W
- Load
02 / Find its place
A small footprint.
A lasting impression.
Try the size before you buy
Mark 5 cm by 0 cm with removable tape and live with the outline for a day before you decide.

03 / The finer details
Quiet form.
Beautifully finished.
3000K Warm White in glass.
- Height
- 5 cm
- Weight
- 0.0 kg
- Material
- Glass
- Light source
- GU10
- Voltage
- 220-240V
- Guarantee
- 5 years
Full specification
Construction
- Material
- Glass
- Finish
- Clear
- Height
- 52 mm
- Weight
- 0.04 kg
- Pack quantity
- 1
Light
- Light source
- GU10
- Wattage
- 6 W
- Equivalent
- 41 W incandescent
- Brightness
- 575 lm
- Efficacy
- 95.8 lm/W
- Colour temperature
- 3000 K
- Beam angle
- 36°
- Direction
- Directional spotlight
- Dimmable
- Yes · Leading edge (TRIAC)
- Energy rating
- F
Fitting it
- Mounting height
- Ceiling height
Electrical & safety
- Voltage
- 220-240V
Cover & compliance
- Guarantee
- 5 years
- Returns
- 30 days, unused
- CE marked
- Yes
- RoHS
- Compliant
A one-page summary you can print or send to your electrician.
What arrives in the box
1× GU10 6W LED bulb
1× Instruction leaflet

Good to know
A few questions,
before it comes home.
What dimmer switches work with the Nimbus Pro GU10 6W LED bulb?
The Nimbus Pro requires a leading edge (TRIAC) dimmer switch for smooth, flicker-free dimming. Trailing edge dimmers are not compatible and may cause buzzing or flickering. If you're replacing old halogens, your existing dimmer may work, but LED-compatible leading edge dimmers will give the best performance across the full dimming range.
What is the actual size of this GU10 bulb — will it fit recessed downlights?
The bulb measures 52mm in height with a standard GU10 base diameter of 50mm, making it compatible with virtually all UK recessed downlight fittings. At 40g it's lightweight and won't strain spring clips. The 36-degree beam angle suits standard ceiling heights of 2.4–3m for focused accent lighting.
How bright is 575 lumens compared to a halogen GU10?
At 575 lumens, this 6W LED replaces a traditional 80W halogen GU10 while using 92% less energy. The focused 36-degree beam delivers crisp, directional light ideal for spotlighting kitchen worktops, artwork, or architectural features. For ambient lighting in a living room, you'd typically need 4–6 bulbs depending on room size.
Can I use this GU10 LED bulb in a bathroom?
This bulb is rated for indoor use only and has no IP rating, so it must not be installed in bathroom zones 0, 1, or 2 where water ingress is possible. It can be used in zone 3 (outside shower/bath enclosures, more than 60cm from water sources) or elsewhere in the bathroom provided the fitting itself offers appropriate IP protection for the location.
What does CRI 97 actually mean for home lighting?
CRI (Colour Rendering Index) measures how accurately a light source reveals true colours, with natural sunlight scoring 100. At CRI 97+, the Nimbus Pro renders reds, greens, and skin tones with near-perfect fidelity — essential for viewing artwork, preparing food, or choosing clothing. Most standard LEDs score 80–85, which can make colours look dull or slightly off.
What's covered under the 5-year warranty on this LED bulb?
The 5-year warranty covers manufacturing defects including premature failure, flickering, or colour shift under normal domestic use. It does not cover damage from incorrect dimmer switches, power surges, or installation in unsuitable environments (e.g. enclosed fittings without ventilation). Simply contact EnsoLight with your order number if a fault occurs within the warranty period.
Still deciding? Ask us about NimbusMonday to Friday, 9am to 5pm
One quiet change
Make room for
a softer evening.
Nimbus in 3000k warm white. £11 each.
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