Inspired by 1950s television technology, the R30 ESL is a new light bulb that’s safer than a CFL and offers better lighting than an LED. The bulb features Electron Stimulated Luminescence technology, which uses accelerated electrons (just like those old TVs) to stimulate phosphor to create light. Virtually indistinguishable from a traditional bulb, it lasts 10,000 hours. Cost: $20. Vu1 Corp. 678-385-5385.