This is a Prolite 30w daylight (865) energy saving spiral lamp with a BC (B22d) cap. They have an average life of 8000 hours and are non-dimmable. They are frequently used in seasonal and display applications as well as in retail and around around the home.
Manufacturers Part No (where applicable) : HELIX/30W/BC/640
This Prolite product is available for just £4.88
at LampShopOnline Ltd