http://www.bbc.co.uk/news/science-environment-32100071

What a bright idea! (pun most assuredly intended )

Only trouble with these is the price. I had to pay £8.00 for my regular LED bulb in the living room. Now I need another one to replace the fluorescent one in the hall. The light they produce is nice and bright though. I guess if it lasts longer then it pays for itself eventually, sorta.

Given that they're less expensive to operate,  are an order of magnitude more durable than incandescents and far less potentially toxic than fluorescents, I'd think that 8 quid is a real bargain.

The LED bulbs did start out at £35 for the good, dimmable ones. They're now about £8-12 and getting better (wider angle 110 deg rather than 30 deg) and more reliable (I have heard some failure stories).

I'd like to see the direct wattage/lumens comparison with these graphene bulbs. The article only says "It is said to cut energy use by 10% and last longer owing to its conductivity." which is a bit of a non statement. If compared to incandescent bulbs then LEDs are better. If compared to LEDs then interesting.

I'm just about to go all low energy and am looking at the LED stuff now.