- Energy Rating
Graded on performance, from A+++ to G, with A+++ being the highest rating. Higher ratings mean better energy efficiency
- Fitting type
This indicates the cap or base of the bulb, Examples: BC-B22 = bayonet cap/ ES-E27 = edison screw/ SBC-B15 = small BC/ SES-E14 = small ES
This shows the approximate colour of the light output of the bulb, shown in degrees Kelvin (K). The lower the number the warmer the light, the higher the number the whiter the light.
- Lifetime (Hours)
Shown in hours, this is based on an average use of 3 hours illumination per day
- Lightbulb Shape
- Lightbulb Type
- Lightbulb Wattage
Estimate of apparent amount of light the bulb will produce, measured in lumens (lm). The higher the number the brighter the light output.
- Number of bulbs
- Pack Size
Brand information & size guide
|Traditional Wattage||LED Equivalent||Lumens|
Please note: The table above is a guide to show you the equivalent bulb wattage across traditional bulbs and LEDs.
A bulb's wattage tells us how much energy it uses, rather than the amount of light it generates (lumens). Lumens (lm) are a measure of the total output of visible light from a lamp or light source. The higher the lumen the “brighter” the lamp will appear. To make comparing bulbs easy, it’s best to look for the light output (lumen).
More from Calex
- Standard delivery within 5 working days
- Next or named day delivery
- Named day UK delivery pre-10.30am
- International delivery
- Not available
- Find out how we may still help you
- Click & collect
- Click & collect from John Lewis and Waitrose shops from 2pm Thursday
- Collect+ from a local shop from Thursday
- Returning an item
If you’ve changed your mind about keeping your purchase, please return it in its original condition with proof of purchase and we’ll exchange or refund it. Unless faulty, this should be within 35 days of receiving your order. By original condition, we’d expect this to mean that you’ve kept packaging and labels, and that the item is undamaged and unused.
You can return for free in the UK via John Lewis and Waitrose Shops, Royal Mail, Collect+ or MyHermes. If you need to arrange collection of large or heavy items, call us on 03456 049 049. For international returns queries, call us on +44 1698 545 454
You’ll find returns information on your delivery note. Exceptions apply to certain products - find out more about our refund policy