A company called Vu1 looks to have done the needful and taken a fresh look at energy-efficient lighting with a technology called ESL, or Electro-Stimulated Luminescence.  This technology works by sending electricity through a phosphor coating on the inside of a seemingly normal glass bulb.

The merits of this new bulb (supposedly available in September) are as follows:

• Light quality similar to halogen or incandescent
• Turn on instantly (no warm-up) and work with dimmers
• Do not use Mercury (as in CFLs)
• Manufacturing requires less energy than LED
• Produce 40 Lumens per Watt (Incandescent = 15L/w  < ESL = 40L/w < CFL = 50L/w)

Vu1 via CleanTechnica

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