Dual Headlights

Upgrades.DualHeadlights History

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September 07, 2008, at 03:11 AM by Paulcet -
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The diode can be purchased from Radio Shack or Fry's. Diodes are like one way valves. It lets current go one way on not the other. It is necessary because the low wire will be hot when the high isn't. Without the diode the current would go from the white to the yellow line and light the high lamp when on low. However, you need that connection because the low wiring isn't hot when on high. So, without the diode you either have both lights on all the time, or only one lamp on for low and the other for high. Make sure to get a 12 volt diode, and to connect it in the correct orientation.

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The diode can be purchased from Radio Shack or Fry's. Diodes are like one way valves. It lets current go one way on not the other. It is necessary because the low wire will be hot when the high isn't. Without the diode the current would go from the white to the yellow line and light the high lamp when on low. However, you need that connection because the low wiring isn't hot when on high. So, without the diode you either have both lights on all the time, or only one lamp on for low and the other for high. Make sure to get at least a 12 volt diode, and to connect it in the correct orientation. The correct orientation is to put the stripe toward the low headlight.

March 24, 2008, at 11:23 PM by PhilWard - price
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Dominator-style Headlights

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Dominator-style Headlights (~$120)

March 24, 2008, at 11:18 PM by PhilWard - dominators
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Hella Angel Eyes

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This wiring diagram shows how to setup dual headlights with one light on for low, and both on for high. If you are using the angel eyes setup, you can attach the angels to the same wires as the low lamp.

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This mod makes use of 2 Hella Angel Eyes - not originally designed for motorbike headlights, these do not have high- and low-beam settings. As a result this setup needs some wiring to allow dual headlights with one light on for low, and both on for high. The circuit is reproduced below.

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Dominator-style Headlights

Dominator headlights are available as a pair in either black or chrome finish. They have two 4" reflectors and run two H4 55/60W bulbs - as a result they will provide twice as much light as the stock headlight, but also draw twice as much power (~9A).

The Dominators come with a wiring harness meaning that they plug straight into the original headlight socket - although the wires are fairly long, meaning that a bit of a tidy-up with some black tape is required for neatness. They take very little work to install.

There are a couple of mounting options:

  • stock mounting brackets - some people have managed to squeeze them in with the stock E-model brackets on the fork-tubes although it is a tight fit around the speedo cable;
  • stock mounting brackets with new triangular cheek-pieces - a trip to the wrecker's yard to find longer cheek-pieces and a bit of time spent with a file and some spray paint will quickly solve the room issue;
  • aftermarket headlight brackets - these clamp onto the fork tubes, but can be as expensive as the headlight itself!

There are a number of stores online selling these headlights - often under different names, but they all appear to be the same product. www.streetfighterstore.co.uk seem to be the cheapest, but being a UK company shipping costs need to be factored in when making a cost comparison.

April 07, 2007, at 08:10 PM by Lost Dog - removed extra %
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April 07, 2007, at 08:10 PM by Lost Dog - Added photo
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http://www.gstwins.com/photogallery/albums/userpics/16332/gs500newheadlight4.jpg

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April 07, 2007, at 08:06 PM by Lost Dog - Added wiring diagram and instructions
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This wiring diagram shows how to setup dual headlights with one light on for low, and both on for high. If you are using the angel eyes setup, you can attach the angels to the same wires as the low lamp.

The diode can be purchased from Radio Shack or Fry's. Diodes are like one way valves. It lets current go one way on not the other. It is necessary because the low wire will be hot when the high isn't. Without the diode the current would go from the white to the yellow line and light the high lamp when on low. However, you need that connection because the low wiring isn't hot when on high. So, without the diode you either have both lights on all the time, or only one lamp on for low and the other for high. Make sure to get a 12 volt diode, and to connect it in the correct orientation.

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April 07, 2007, at 07:52 PM by Lost Dog - dual headlights first pass
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GSTwins forum discussion