Experiment halogen bulbs
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Stellar HDF Member
Joined: Sep 2015
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From: Seattle
Experiment halogen bulbs
I have been reading to find some halogens, thinking ultra silver stars or PIAAs, looked at ZXEs...not sure on them but came across this study a guy did in his truck measuring with a light meter. Take a look
http://www.silveradosierra.com/electrical/piaa-vs-silverstar-ultra-vs-stock-t22542.html
http://www.silveradosierra.com/electrical/piaa-vs-silverstar-ultra-vs-stock-t22542.html
Road Captain
Joined: Mar 2016
Posts: 570
Likes: 135
From: DFW, TX
I converted my softail (4" housing) to a PIAA, still not bright enough so I went to an HD Daymaker. Recently purchased 2012 Street Glide with larger light housing, did not think it was bright enough so I replaced the stock bulb with the PIAA previously used in the softail and aimed it a little bit highter. BIG difference between PIAA and stock. I think I will keep the PIAA in the SG ilo purchasing another daymaker. The larger housing definetley gets more light out there.
Outstanding HDF Member
Joined: May 2015
Posts: 2,172
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From: Georgia
I used to run Silverstars in my truck. Light output was better but I couldn't get them to last much over 3 months. GE was good about replacing them but I finally gave up on them. They just wouldn't last.
HDF Community Team
Joined: Nov 2012
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From: USA
Graph the data. Look at the trend lines. If the data follows what he's already gathered, at less than 10 foot distance the stock light would have a higher lumen than either the Ultra or PIA. For the Ultra and PIA bulbs are dropping lumens at a steeper rate with regards to distance than the stock bulb is.
A lumen value at the lens, 2 feet away and 5 feet away is not what you drive with at night. Much more significant would be the lumens at say 100 feet. I would be very curious to see what that data point would have shown. But, it was not measured.
A lumen value at the lens, 2 feet away and 5 feet away is not what you drive with at night. Much more significant would be the lumens at say 100 feet. I would be very curious to see what that data point would have shown. But, it was not measured.
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Stellar HDF Member
Joined: Sep 2015
Posts: 2,008
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From: Seattle
They study was not done as I would have done but at least he used a light meter. Those meters also have multiple settings for different type of analysis which wasn't really discussed in the study, along with positioning of the sensor. I would be more concerned with ft candles instead of lumina though. I think they study used lux. Readings should have been taken at further distances as well as along different planes. When I get all my gear...and do the install I will do a proper light study for us with my meter.
Last edited by SnoRider; Jul 12, 2016 at 10:11 PM.
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