This is an incandescent light bulb, which is one which produces light by heating a filament in an inert gas. It is not fluorescent so is ideal if you don't get on with them.

Its increased efficiency means it complies with the new regulations governing domestic lighting.
It has a C energy rating

The lamp envelope is 45mm in diameter

The Small bayonet and small screw base lamps are 75mm in height and the Bayonet and Screw base lamps are 80mm

The bases are standard Bayonet, Screw , Small Bayonet and Small Screw

These are dimmable

They must be used in fittings with the base of the lamp at the bottom (not base up)

The rated life is 2000hrs which is approximately 6 months continuous burn time

These are also known as:

globes small globes globelights festoon christmas tree lights vanity lights mirror lights