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Dim Headlights and Low Voltage
#1
At the non rally, Ron Skeen asked me to look at the headlights on his coach. The issue was that they did not provide enough light for night driving. We found with the engine running that the voltage at the left light was 11.4 and the voltage at the right light was 12.4. Although Newell did use relays for the headlights, the extended run of wire from the passenger kick panel to the lights coupled with inadequate wire gauge resulted in the low voltage.  Julius @Pardue101  helped me install relays at the headlights to see if we could improve the voltage. We used 10 guage wiring for both the hot and ground sides. We pulled the left side power from the large 12V terminal in the bay below the driver, and we pulled power from the kick panel hot stud for the right side. We ran new grounds directly to ground studs in the area close to the lights. The voltage increase was very good. We measured 13.8 at the lights with the engine running. So if the graph is anywhere close to accurate, the output of the light was around 620 lumens at 11.4 volts and 1200 at 13.8 volts. On paper we almost doubled the output of the light with the installation of the relays. I am going to leave it to @ron skeen to comment on his real world experience of driving at night. 

I know this subject has been posted in the past, but we do have a number of new members, AND most importantly the newer Newells already use headlight relays so it would be easy to assume that adding more relays would not be a worthwhile effort. 

İmage
Richard and Rhonda Entrekin
99 Newell, 512
Subaru Outback Toad
Inverness, FL (when we're home Cool )
#2
(05-30-2017, 06:24 AM)Richard Wrote: At the non rally, Ron Skeen asked me to look at the headlights on his coach. The issue was that they did not provide enough light for night driving. We found with the engine running that the voltage at the left light was 11.4 and the voltage at the right light was 12.4. Although Newell did use relays for the headlights, the extended run of wire from the passenger kick panel to the lights coupled with inadequate wire gauge resulted in the low voltage.  Julius @Pardue101  helped me install relays at the headlights to see if we could improve the voltage. We used 10 guage wiring for both the hot and ground sides. We pulled the left side power from the large 12V terminal in the bay below the driver, and we pulled power from the kick panel hot stud for the right side. We ran new grounds directly to ground studs in the area close to the lights. The voltage increase was very good. We measured 13.8 at the lights with the engine running. So if the graph is anywhere close to accurate, the output of the light was around 620 lumens at 11.4 volts and 1200 at 13.8 volts. On paper we almost doubled the output of the light with the installation of the relays. I am going to leave it to @ron skeen to comment on his real world experience of driving at night. 

I know this subject has been posted in the past, but we do have a number of new members, AND most importantly the newer Newells already use headlight relays so it would be easy to assume that adding more relays would not be a worthwhile effort. 

İmage
Thanks again Richard and Julius. The lights are now, as the saying goes as different as night and day! When the lights are on Dim they are as bright as what high beam use to be. High beams are now bright and I am enjoying driving again at night. This was a great improvement and when I get the lens cleaned and polished I am sure they will even be better. Thanks again to all the Gurus who help with all my Projects. 
1996 #422 and 2004 #689 with YELLOW Goldwing, BMW K1200S, RZR, Dodge Truck

#3
Richard, thanks for this posting because I have the same problem and I hope to correct it sometime this summer. I try not to travel at night but need to be prepared just in case I have to.
2001 Newell #579
tow a Honda Odyssey
fun car: 1935 Mercedes 500K replica
#4
(05-30-2017, 10:49 AM)Chester Stone Wrote: Richard, thanks for this posting because I have the same problem and I hope to correct it sometime this summer.  I try not to travel at night but need to be prepared just in case I have to.

I solved this problem by installing 2 LED bulbs and they really light up the road. I got them on eBay for about $65.00 and they replace the existing bulb without any modifications.
#5
OK THIS just got added to my list! Looks like an easy fix and I am driving way too much at night not to have great lights. I plan to both add the new wiring and relays and then eventually will add new LED headlights when I decide which ones to get... I can run my current lights on high beam and no one even flashes me! Pathetic... and that’s after new SilverStar bulbs!
Karen & Adrian Abshire 
1998 2 slide 45' Newell towing a 2012 Jeep Wrangler Rubicon Unlimited and a 2006 Mercedes SLK320 for wifey. 
Prior: 1985 Foretravel ORED 35, 1988 38' Foretravel U280, 2000 Foretravel 42' U320, 1990 Bluebird Wanderlodge WB40


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