BillHolz
Posts: 79
Joined: Tue Sep 27, 2016 6:32 am
Delivery Date: 07 May 2016
Leaf Number: 322345
Location: Norfolk, VA

Re: H13/9008 bulb change

Mon Mar 26, 2018 7:32 am

LED headlights do not increase range by any noticable amount. What I like about them is they are generally made to work over a wide range of voltages with the same light output. My LED's work from 8V to 32V if I remember correctly, but the Halogen's are noticably dimmer when the 12V system is not at 14V, which for the Leaf is most of the time.
2015 SV no QC

gshepherd
Posts: 176
Joined: Wed Apr 27, 2016 12:01 am
Delivery Date: 03 Jun 2016
Location: Seattle / Phoenix

Re: H13/9008 bulb change

Thu Jun 07, 2018 12:14 pm

So far, none of the aftermarket LED headlight bulb retrofits are DOT approved. As such, the resulting beam pattern may or may not equal the original beam pattern. If you do go the LED route, choose wisely and verify the resulting beam pattern before and after. You don’t want to blind other drivers, which I’m seeing more and more now that people are buying cheaply engineered retrofit kits online.

I agree that good quality LED kits will provide a stable light output under the suboptimal voltages the LEAF runs the stock halogen headlights at. The best output from the stock halogens is during the first few minutes of starting the car or when running the wipers... the only time the headlights see a proper 14v supply and turn nice and bright white as the bulb manufacturer intended. The rest of the time the sag down to a dimmed yellow on 12.5 volts or so.
2016 LEAF SV

brotherjethro
Posts: 47
Joined: Mon Jul 03, 2017 6:21 am
Delivery Date: 03 May 2017
Location: Vancouver, WA

Re: H13/9008 bulb change

Fri Jun 08, 2018 11:05 am

Something I learned recently and found interesting regarding operating Halogen bulbs at lower-than-specified voltages:

https://en.wikipedia.org/wiki/Halogen_lamp#Halogen_cycle

"With a reduced voltage the evaporation is lower and there may be too much halogen, which can lead to abnormal failure."

and

"There are many situations where halogen lamps are dimmed successfully. However, lamp life may not be extended as much as predicted."
2013 Pearl White SV, bought used in 2017 with only 5100 miles. Vancouver, WA.

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