[Greenbuilding] compact fluorescent bulbs

[RONALD CASCIO]

Can these LEDs be dimmed Jason?

Ron


----- Original Message ----- 
From: "Jason Holstine" <jasonh at amicusdb.com>
To: "'Ben Pratt'" <prattb at uwstout.edu>; <Greenbuilding at listserv.repp.org>
Sent: Sunday, March 18, 2007 4:20 PM
Subject: Re: [Greenbuilding] compact fluorescent bulbs


> CFL quality has started to run the gammit based on manufacturer and price.
> The glass lining, gas, and quality of the magnetic ballast are keys to 
> light
> output and life span. They're meant to be on for longer stretches--at 
> least
> 4+ hours b/c the on-off cycle messes with the ballast.
>
> Not to stump, but we've just added a new line of LEDs, including recessed,
> cove, stair, pendants, and other applications. They rock. Upwards of 
> 50,000
> hour life (at 8 hours/day x 365 = 17 years); 80% efficiency over incan
> bulbs; they're warrantied for 3 years (a lightbulb with a warranty?); no
> mercury. Both warm and cool white options--people have really been pleased
> with them. They'll retrofit. Check out www.permlight.com.
>
> I've seen some other new LEDs coming out in the next year or 2, they're
> awesome.
>
>
> Jason Holstine
> Amicus Green Building Center
> www.amicusgreen.com and www.amicusdb.com
>
>
>
>
> -----Original Message-----
> From: greenbuilding-bounces at listserv.repp.org
> [mailto:greenbuilding-bounces at listserv.repp.org] On Behalf Of Ben Pratt
> Sent: Saturday, March 17, 2007 9:31 PM
> To: Greenbuilding at listserv.repp.org
> Subject: [Greenbuilding] compact fluorescent bulbs
>
>
> I have tried many different brands, but my wife finds the color too cold 
> and
> harsh--even with the ones that say they give a warm light.
> They are OK (i.e. she tolerates them) if they are in an enclosed fixture,
> but when exposed, as in a ceiling fan, the light is pretty unpleasant. I
> could live with them, but my wife can't. Any suggestions? I thought I'd
> found a solution when I came across some at IKEA that enclose the tube in 
> a
> "traditional-looking" bulb. But the color of these is very cold.
>     Also, I question the environmental impact of these bulbs. They save
> energy, but contain mercury. I must confess, I've accidentally broken one 
> or
> two in my day. Also, I wonder what percentage of them are disposed of
> correctly. I'd bet some jerks buy them for the cost savings, but not 
> because
> of environmental concerns--then throw them out with the regular garbage. 
> So,
> are these bulbs a good idea or not?
> Is LED our best hope for the future---when the cost comes down and the
> technology is perfected?
> -Ben
>
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