LED Headlights
Discussion
Adrian@ said:
No...not even anyway near it, the standard plastic bulb holders are not up to taking the 100/80 bulb...I have seen lots of them melted.
Adrian@
You can buy a jump loom to a ceramic holder though.
Is it just the bulb holder/lamp holder (my old physics teacher used to say Bulbs are things that grow in a garden), or is the wiring loom also marginal for the 80/100W bulbs (whack - ouch - sorry sir)Adrian@
You can buy a jump loom to a ceramic holder though.
Edited by Adrian@ on Tuesday 11th November 20:46
The OE wiring is as such up for the job, the connector melts from the heat...BUT, when upgrading the switch/fuse box IMHO is not, so I would only ever be using the standard wiring to strike up a relay and take a new fused power supply from the battery/starter motor to then power from the relay to a new headlamp loom set.
Adrian@
Adrian@
Adrian@ said:
The OE wiring is as such up for the job, the connector melts from the heat...BUT, when upgrading the switch/fuse box IMHO is not, so I would only ever be using the standard wiring to strike up a relay and take a new fused power supply from the battery/starter motor to then power from the relay to a new headlamp loom set.
Adrian@
Have you tested to see volt drop ?Adrian@
Personally Id run a 30 amp cable directly from the back of the alternator output, down to the back of the headlights via fuse, with a couple of relays near the headlights being switched from the old headlight dip and full feed wires if you are running halogens. Keep the power wirng short as possible, and use really good quality wire- this way you can get up to 14 volts on the bulbs- not that this matter at all if you want to run LEDs that draw just a few amps.
blitzracing said:
Personally Id run a 30 amp cable directly from the back of the alternator output, down to the back of the headlights via fuse, with a couple of relays near the headlights being switched from the old headlight dip and full feed wires if you are running halogens. Keep the power wirng short as possible, and use really good quality wire- this way you can get up to 14 volts on the bulbs- not that this matter at all if you want to run LEDs that draw just a few amps.
Do you have a wiring diagram ,not sure how to wire both the dip and full beam in to the same relay 
SILICONEKID345HP said:
Do you have a wiring diagram ,not sure how to wire both the dip and full beam in to the same relay
I just use two relays so you dont have a single point of failure- but if you want you want you could use a single relay that switches two way- one for dip and one for full. The problem here is you would use a single feed wire to the relay common contact, and therefore a single fuse, and if this pops you loose all your lights in one go- hence use two relays and two fuses to give you fall back. Two relays also allows you to wire both the dip and the full to come on at the same time on full beam if you wish , (with an additional diode or two) but the current draw gets pretty high at near 20 amps for both headlights running both bulb filiments at the same time. Not that should be an issue on a TVR using a Range Rover alternator that has things like a heated screen to contend with- I think they are rated around 50 amps, so there should be spare capacity.blitzracing said:
I just use two relays so you dont have a single point of failure- but if you want you want you could use a single relay that switches two way- one for dip and one for full. The problem here is you would use a single feed wire to the relay common contact, and therefore a single fuse, and if this pops you loose all your lights in one go- hence use two relays and two fuses to give you fall back. Two relays also allows you to wire both the dip and the full to come on at the same time on full beam if you wish , (with an additional diode or two) but the current draw gets pretty high at near 20 amps for both headlights running both bulb filiments at the same time. Not that should be an issue on a TVR using a Range Rover alternator that has things like a heated screen to contend with- I think they are rated around 50 amps, so there should be spare capacity.
Thanks will this do the job ?http://www.ebay.co.uk/itm/H4-9003-12V-Ceramic-Fuse...
trev4 said:
Any affect on the radio with these bulbs we fitted the domestic versions in our kitchen now all we get is interference when the lights are on apparently a common problem we found out after fitting them
I am assuming that you had 12v lamps fitted. Were proper drivers used or were the previous transformers retained?
ChimpOnGas said:
Do you boys want to start a separate post on how to wire up high wattage incandescent bulbs?
DOH...Your LED's don't require any uprated power supply and thing won't be affected by heat...that was a thought when 2k lacquering the reflectors (not a good idea for normal lights.Adrian@
I'm grateful for any post that keep the topic at the top of the list
Adrian@ said:
Why two? that loom, with the main lead extended/eyelets changed to attach the power to starter and earth to the chassis next to the starter, looks perfect, (it powers the relays from a single headlamp socket)..am I missing something.
I am not sure that the extension to the second bulb holder is wired correctly as the blue wire returns out of holder with an eyelet...nothing that cannot be sorted though.
B**gger it I have bought one to look at it...the some of the parts at that price!
Adrian@
After a closer look- I think you are correct- it used just one feed plug from a single headlight to switch two, two way relays to feed two bulb sockets. Perfectly fair thing to do.I am not sure that the extension to the second bulb holder is wired correctly as the blue wire returns out of holder with an eyelet...nothing that cannot be sorted though.
B**gger it I have bought one to look at it...the some of the parts at that price!
Adrian@
Edited by Adrian@ on Friday 14th November 08:44
Adrian@ said:
ChimpOnGas said:
Do you boys want to start a separate post on how to wire up high wattage incandescent bulbs?
DOH...Your LED's don't require any uprated power supply and thing won't be affected by heat...that was a thought when 2k lacquering the reflectors
Lets keep this one about the LED headlights shall we, after all the topic is titled "LED Headlights"
ChimpOnGas said:
Exactly my point, a new post is normally the best way to go completely off topic
Lets keep this one about the LED headlights shall we, after all the topic is titled "LED Headlights"
The wiring to the lights is not to off topic .. Its part of the installation and worth doing .Lets keep this one about the LED headlights shall we, after all the topic is titled "LED Headlights"
Any news with the LED`s
Edited by SILICONEKID345HP on Friday 14th November 14:12
Edited by SILICONEKID345HP on Friday 14th November 14:21
Gassing Station | Chimaera | Top of Page | What's New | My Stuff