Description from Lamp Specs
Crown silvered light bulbs reflect the light from the lamp back into the fitting which contains a reflector that then reflects the light forwards in a controlled beam. Availavle in standard GLS shape 60 Watt and 100 Watt screw ES E27 cap and bayonet BC B22d cap plus 40 Watt small screw SES E14 cap small lemon shape.
Please visit the website for the different options available & pricing. Prices start at £2.45