The Light Lab. See your bulb in action
LED Bulb Visualiser: See the Difference Before You Buy
Choosing the right LED bulb is about more than just watts. Our interactive light lab lets you see exactly how different colour temperatures and brightness levels will look in a real light fitting — before you make a purchase.
🔍 How it works: We've photographed the Celeus pendant with the light OFF and ON. The difference between the two shots isolates the lamp's true contribution, letting you recolour and dim it in real time. Select a bulb thumbnail below to see how different colour temperatures and intensities look.
Understanding Colour Temperature (Kelvin)
Colour temperature describes the light appearance. The Kelvin scale runs from warm (lower numbers) to cool (higher numbers):
- 1800K–2200K: Candlelight / Very Warm — perfect for ambient, relaxing spaces
- 2700K–3000K: Warm White — traditional bulb feel, ideal for living rooms and bedrooms
- 4000K: Cool White — clean, neutral light for kitchens, bathrooms and workspaces
- 5000K–6500K: Daylight — crisp, bright light for reading, garages and task lighting
Brightness Guide (Lumens vs Watts)
Old bulbs were sold by watts (energy use). LEDs are chosen by lumens (brightness). Here's a quick comparison:
- 40W incandescent ≈ 450 lumens (4–6W LED)
- 60W incandescent ≈ 800 lumens (7–9W LED)
- 75W incandescent ≈ 1100 lumens (10–12W LED)
- 100W incandescent ≈ 1600 lumens (14–16W LED)
Which Bulb Fitting Do You Need?
- Bayonet (B22): Two pins on the side, push and twist to lock — common in UK ceiling lights
- Edison Screw (E27): Large threaded base, screw in clockwise — used in lamps and pendants
- GU10: Two thick pins, push and twist — common in spotlights
💡 Still unsure about your fitting? Send us a photo and we'll identify it for you.
Why Switch to LED?
- Energy savings: LEDs use up to 90% less energy than incandescent bulbs
- Longer life: An LED bulb can last 15,000–25,000 hours (up to 25 times longer)
- Better control: Choose exactly the colour temperature and brightness you want
- Dimmable options: Many LED bulbs are fully dimmable with compatible dimmers
📩 Need personal help? Not sure which bulb you need? Email us with a photo of your bulb or fitting, and we'll recommend the perfect replacement.
This interactive tool uses two-shot compositing to show realistic lighting effects. Product shown: Celeus 8 Light Pendant (CEL0822).
