makes me laugh when people comparing about cfl warm-up time, like you need optimal luminosity the second you enter a room.

This is what you call a light bulb.....................................................................

20,000 watt light bulb test

Now watch that and tell me you don't smile!

That's more like it pricewise.

Great price op, tescos it is, heat

awww wish I'd seen this deal earlier as was in tesco before....

Old technology - LED lights are only a little more expensive, and better in a number of ways. Of course if you are still using incandescent lights, these are much more efficient.

I Got these and they are bright

Clicky

They are good, particularly for the price though still only half the lumens asked for. These...
http://www.fastlec.co.uk/megaman-led-16.5w-opal-classic-lamp-bc?gclid=Cj0KEQjw9vi-BRCx1_GZgN7N4voBEiQAaACKVsGsQWT9dMrxbgypJfpU8X3a5hyaUv0r701Hr5W4GT8aAifV8P8HAQ
are 1521 lumens though nearly £19 each.
I've used these
http://cpc.farnell.com/pro-elec/hk-ld432a-bc/lamp-globe-led-12w-bc-dimmable/dp/LP07975
which are £6 and emit around 1200 lumens. Available slightly cheaper if dimming is not required, also available in horrible warm white. :wink:

Cheers OP.

Good price, but agree LEDs are the way to go. The long warm up time is the handicap on CFLs. There's some good filament LED bulbs around these days from about £5 (Asda do some). Filament bulbs are also even more efficient for the lumen output than "normal" LED bulbs, and the light output is 360degrees (so you don't get a large shadow on the ceiling) The one I got in ASDA is a 7w one with 810 lumen output. You need about a 10w "normal" led bulb for that kind of output