6 Feb
2015
6 Feb
'15
9:09 a.m.
On 02/06/2015 01:05 AM, Peter Corlett wrote:
LED lighting is actually delivering what the CFLs
falsely
claimed, provided one doesn't need more than about 400lm
per bulb due to heat issues. For the customary single bulb
per room in typical UK lighting, it means we're stuck with
CFLs until the technology improves or one replaces the
light fitting with one that takes multiple bulbs. We'll
probably see a whole load of crappy LED bulbs when that
finally becomes mainstream though.
Yes, my home-made LED retrofits are 44"
long, made on two
strips of 22" x 2"
PCB material, as a heat sink. They still run somewhat warm,
but probably
no more than 50 C. I think they will last a LONG time.
These LEDs are rated at 102 Lm/W, so the efficiency is
insanely high.
20 W of LEDs easily outshines TWO 48" fluorescent tubes.
Jon