Are ESL bulbs better than CFL or LED?
by Mark Best on Sep.28, 2009, under Green Technology, Technology
Vu1's conceptual design for its R-30 bulb.
(Credit: Vu1)
A novel design for energy-efficient lightbulbs can produce incandescent-quality light and does not contain mercury like compact fluorescents (CFLs), according to manufacturer Vu1.
The Seattle-based firm has been working on an alternative to CFLs and LED lights for five …
