HD LED headlight for dyna's
#81
07-04-2011, 10:17 PM
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#82
07-05-2011, 06:32 AM
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As there's a bunch of LED interested folks on this thread, here's a cross post.
Howdy folks,
Dropped my scooter off at my local Indie and was showing him the new LED headlight. He was impressed and then asked, "Why does the low beam shut off when the high comes on?" I had no answer and he made sense when he figured that the light would be even better with both on.
What do you guys say? Good idea? Bad idea? Wreck the light idea? What say ye?
Howdy folks,
Dropped my scooter off at my local Indie and was showing him the new LED headlight. He was impressed and then asked, "Why does the low beam shut off when the high comes on?" I had no answer and he made sense when he figured that the light would be even better with both on.
What do you guys say? Good idea? Bad idea? Wreck the light idea? What say ye?
Heat, actually. While LEDs waste less energy as heat than traditional bulbs, they generate all of their heat at the base where the driver circuitry resides, which is why there's a huge heat sink on the posterior side of the unit.
There's no regulation preventing the use of highs and lows at the same time.
#83
07-05-2011, 09:23 AM
How about somebody wiring one up to burn both high and low and let's see what happens. That would be an easy task.
The stock wiring that attaches to the headlamp incorporates a ground, a low beam wire and a high beam wire. The low beam wire energizes the low beam when the main switch is on. The high beam wire energizes the high beam when you hit the high beam switch. However, when the high beam is turned on, the low beam wire is turned off.
To make both beams burn simultaneously, you have several options.
You can wire a jumper between the low beam wire and the high beam wire and insert a diode. Position the diode to block current from feeding from low to high but to allow current to flow from high beam to low beam. This way, when low beam is on, the high beam is not getting current via the low beam circuit. However, when the high beam is switched on ( and low beam off), current will enegrgize the high beam and also flow through the jumper wire and through the diode to also energize the low beam. Use the biggest diode you can find at Radio Shack.
OR- run a separate wire with switched power to the low beam and then attach the normal high beam wire to the high beam wire connector on the headlamp. You can just tape-up the normal low beam wire since you will not need it (remember, you are not using it because it goes dead when the high beam is on).
My biggest concern is heat. I am curious if the energizing of both low and high beams together will generate too much heat for the heat sink to dissipate.
The stock wiring that attaches to the headlamp incorporates a ground, a low beam wire and a high beam wire. The low beam wire energizes the low beam when the main switch is on. The high beam wire energizes the high beam when you hit the high beam switch. However, when the high beam is turned on, the low beam wire is turned off.
To make both beams burn simultaneously, you have several options.
You can wire a jumper between the low beam wire and the high beam wire and insert a diode. Position the diode to block current from feeding from low to high but to allow current to flow from high beam to low beam. This way, when low beam is on, the high beam is not getting current via the low beam circuit. However, when the high beam is switched on ( and low beam off), current will enegrgize the high beam and also flow through the jumper wire and through the diode to also energize the low beam. Use the biggest diode you can find at Radio Shack.
OR- run a separate wire with switched power to the low beam and then attach the normal high beam wire to the high beam wire connector on the headlamp. You can just tape-up the normal low beam wire since you will not need it (remember, you are not using it because it goes dead when the high beam is on).
My biggest concern is heat. I am curious if the energizing of both low and high beams together will generate too much heat for the heat sink to dissipate.
#84
07-07-2011, 09:44 AM
Here's a good comparison between stock halogen and HD LED as well as another LED brand.
http://www.lrsanitary.com/0/leds_update.pdf
http://www.lrsanitary.com/0/leds_update.pdf
#85
07-07-2011, 11:20 PM
#86
07-11-2011, 09:27 PM
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#87
07-14-2011, 10:59 AM
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#88
10-09-2011, 07:57 PM
Cobra II headlight w/ Black LED Headlight work out?
With that said did you get your setup done? How did the LED fit in the Cobra? Any pics to show your masterpiece?
Last edited by Bigg Lou; 10-09-2011 at 08:02 PM. Reason: Clarify question
#89
10-09-2011, 08:05 PM
Been reading up on these Black LED Headlights and definitely getting one but since I have the FatBob have to replace the dual headlight for this to work. With that said did you get your setup done? How did the LED fit in the Cobra? Any pics to show your masterpiece?
#90
10-09-2011, 08:57 PM
Other threads and forum members have confirmed that the LED insert will fit in H-D's original bullet headlight. Question is, will it work in a Cobra II?