Bayonet Fitting Biobulb
The 100w Biobulb is a full spectrum daylight energy saving bulb that uses 75% less energy than a standard light bulb. Issuing an impressive 1750 lumens (measure of natural light), as compared to 600 lumens issued per standard 60 w bulb, the BioBulb closely replicates sunlight, producing a much better quality of light and consequently, a healthier and happier home.
Radiates less heat than a standard bulb and lasts around 10,000 hours
Colour rendering index of 85.
Also available in screw fitting.
"The Biobulb is an excellent product because it is so much more efficient than standard light bulbs, producing more light while using less energy. According to Energy Saving Trust, one energy saving bulb can save you £45 before it needs replacing."