LEDs bad? [RE-wrenches]

[Ray Walters]

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We've used the LED hedlights (different brands) for as long as  
they've been around. My favorite is the Energizer model for around  
$12.00. I tried the expensive brands and I don't "see" (ha,ha) them  
as being any better. The headlights work so good, that we never added  
the extra lighting to our truck because we just didn't need it. THey  
work great even in the day time for J boxes in not so well lit  
corners, etc.
Forget about the models with big battery packs and cords, the 3 AAA  
batteries on my Energizer last over 20 hours of "ON" time.

R. Walters
Solarray.com
NABCEP # 04170442	



On Dec 19, 2007, at 12:18 AM, Sky Sims wrote:

>
> Recently added them to every ones tool pouches. They work great.
>
> Sky Sims
> Ecological Systems
> www.ecologicalsystems.biz
> 220 County Road 522
> Manalapan, NJ 07726
> ph)732-462-3858  fax)732-462-3962
>
> -----Original Message-----
> From: John Raynes [mailto:john at raynes.com]
> Sent: Tuesday, December 18, 2007 11:16 PM
> To: RE-wrenches at topica.com
> Subject: RE: LEDs bad? [RE-wrenches]
>
>
> How many other wrenches use the little LED headband lamps?  We were
> given some by a client as a gift and within the space of about 2 weeks
> they rose to the top of our list of essential gear.  Incredibly handy
> for working inside power rooms and power panels, even in relatively
> good light conditions.  Way better in many cases than flashlights and
> troublelights consuming a lot more power, often avoiding generator
> running.  We don't go anywhere without them anymore.
>
> John Raynes
> RE Solar
> Torrey UT
>
> At 06:37 PM 12/18/2007 -0800, you wrote:
>
> LEDs may represent one of the most significant electronic technologies
> that
> we have seen in the past 50 years. No exaggeration.
>
> First they are capable of being used in both the illumination as  
> well as
> indication markets. There _is_ a difference: think of the difference
> between
> a head light vs a tail light.
>
> Second, they are among the most efficient light sources known  
> (watts in
> vs
> lumens out), and this includes CFLs.
>
> Third, they come in a variety of colors, red, amber, green, blue,  
> violet
> as
> well as cool and warm white.
>
> Fourth, because they have very short time constants, they can be  
> strobed
> for
> even higher effective efficiency.
>
> Fifth, they have truly mind boggling lifetimes, tens of years
>
> Sixth, being solid states devices, they are much more rugged than CFLs
> and
> of course incandescents.
>
> Pay attention to the occasional "bad news" of course (rust from the
> inside
> out?!), but LEDs are simply going to take over virtually every
> indication
> and illumination market there is on the planet.
>
> It will be fun to watch each illumination and indication application:
> your
> entire car/truck/boat/plane, every home appliance, all industrial and
> residential lighting, flashlights, LCD screen backlighting, and  
> perhaps
> eventually stadium flood lights captured by LEDs.
>
> It might be as much fun as watching integrated circuits make their
> inexorable into every computation and automation function in our  
> lives.
>
> - Peter
>
> Peter T. Parrish, Ph.D., President
> California Solar Engineering, Inc.
> 820 Cynthia Ave., Los Angeles, CA 90065
> Ph 323-258-8883, Mobile 323-839-6108, Fax 323-258-8885
> CA Lic. 854779, NABCEP Cert. 031806-26
> peter.parrish at calsolareng.com
>
>
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>





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