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Date:         Mon, 25 Apr 2011 16:04:46 -0700
Reply-To:     Karl Wolz <wolzphoto@Q.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Karl Wolz <wolzphoto@Q.COM>
Subject:      Re: Tail Lights & Good Samaritans
Comments: To: David Beierl <dbeierl@ATTGLOBAL.NET>
In-Reply-To:  <4db5e362.4969e50a.6288.ffff98c2@mx.google.com>
Content-Type: text/plain; charset="us-ascii"

They'll burn somewhat longer, but output drops and color temp goes down.

Karl Wolz

Sent from my iPhone

On Apr 25, 2011, at 2:10 PM, David Beierl <dbeierl@ATTGLOBAL.NET> wrote:

> At 09:28 PM 4/24/2011, Michael Rasmussen wrote: >> On the chance it's not the bulbs, it's the _____, what should I check out? > > Rated life of bulbs > Rated voltage of bulbs (bulb life goes down with the fifteenth power > of voltage increase over rating while brightness goes up with the > fifth power - rule of thumb)* > *this is why if you buy the miracle last-forever light bulbs from the > catalogs you'll find they're rated for 130 volts. > Vibration, especially of a filament that's not adequately supported > for that service. > Insufficient ventilation. > > As a sort of silly example...rated life of a 3600K photoflood bulb is > one hour. Or was in '70 or so. > > Yrs, > d >


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