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Old 01-31-2019, 01:08 PM   #8
Y-Blockhead
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Join Date: Jul 2011
Location: Redondo Beach, CA
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Default Re: FYI - 6 Volt Bulbs

Quote:
Originally Posted by MikeK View Post
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FWIW, for those unfamiliar with them, the "Ron Francis" 125/75 lamps are actually 75/50 cp. You only get the 125 by wiring both filaments to illuminate simultaneously. Additionally, they come in '12V' only. My own testing of them in 4pi mode in an Ulbricht integrating sphere shows they must be driven above 15.5V to produce the claimed cp. At that point they are at about 3025K and will not last long as they are conventional vacuum/inert gas lamps.
Thanks for the info Mike. Yes, I am running the 75 cp for low beam and 50 cp for high beam. I never tied low and high together for 125 cp high beam because I don't drive at night that much and I felt 50 cp was high enough for high beam. Plus I'm lazy...
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