A lightbulb with that costs less to make, has lower energy emissions and lasts longer  than even LEDs is expected to go on sale later this year.

Researchers at the University of Manchester and the U.K’s National Graphene Institute (NGI) said the light bulb is made out of graphene, a material that’s 200 times stronger than steel and a million times thinner than human hair.

The bulb contains an LED light that’s shaped like a incandescent bulb’s filament, but that’s coated in graphene’s carbon nanotube fibers.

Expected to go on sale in late 2015, the new graphene bulb will be dimable just like any incandescent light, and it will be sold at a “competitive” price by Graphene Lighting PLC, a U.K. company that spun off from the university.

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