Big Green: LED Lighting

[Brennan Schumacher]

While I agree that LED luminaires should not be used in this situation, you
actually can dim LEDs with a sine wave dimmer.

Brennan Schumacher

-----Original Message-----
From: biggreen-bounces at lists.biggreen.org
[mailto:biggreen-bounces at lists.biggreen.org] On Behalf Of Susan Wittmack
Sent: Thursday, December 14, 2006 7:00 PM
To: biggreen at lists.biggreen.org
Subject: Big Green: LED Lighting

FYI,
LEDs are not dimmable. They need constant power. They
are powered by drivers vice ballasts and must have
drivers to operate. The drivers convert AC power to
DC. The drivers can adjust for fluctuating input, but
the output is constant light level. If dimming is a
consideration, you can take LEDs off your list.
--- biggreen-request at lists.biggreen.org wrote:
>    1. RE: lights (Jeff Gerwing) [and others]

_______________________________________________________________
This green building dialogue is provided as a public service 
by Drew George, along with Environmental Building News 
http://www.buildinggreen.com. For instructions see
http://www.biggreen.org/discussion.html
_______________________________________________________________


-- 
No virus found in this incoming message.
Checked by AVG Free Edition.
Version: 7.1.409 / Virus Database: 268.15.18/586 - Release Date: 12/13/2006