LED headlight, blown fuse - Triumph Bobber Forum
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post #1 of 11 (permalink) Old 10-14-2018, 06:44 PM Thread Starter
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LED headlight, blown fuse

I installed a new LE headlight replacement. It's not a brand name, but is a quality product. The plugs connect in the bucket perfectly. All went well with the installation, but before adding the ring screw, I turned on the key and the LED light came on just fine. However - a) the hi/low beam seemed to not have any effect on working. b), about 20 seconds of the LED light being on, I blew a fuse. Now the headlight does not work, and the bike won't start.


Thoughts on what happened? I haven't located the fuse yet due to lack of time today. But, why would it blow?
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post #2 of 11 (permalink) Old 10-14-2018, 07:09 PM
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Probably because the headlight is not as quality as you believe it to be.

If it all plugged in correctly, it has to be an internal fault in the light.
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post #3 of 11 (permalink) Old 10-14-2018, 10:52 PM
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If you haven't located a blown fuse how do you know you blew one?
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post #4 of 11 (permalink) Old 10-14-2018, 10:53 PM
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what is the wattage of the replacement?
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post #5 of 11 (permalink) Old 10-15-2018, 06:44 AM Thread Starter
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Originally Posted by BOBBYP View Post
what is the wattage of the replacement?

Hi Bobby,
High beam 45Watt 4000lumen, low beam 30Watt 2800lumen.

I don't know what the tolerance for the Triumph is, but this seems standard for most bikes in my experience so you may be on to something. That, and/or the internal fault comment.
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post #6 of 11 (permalink) Old 10-15-2018, 04:55 PM Thread Starter
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If you haven't located a blown fuse how do you know you blew one?

I heard the fuse blow. It was a very light "tink" as the light went out. I blew the 15 amp. My next move is to contact the company and ask if 15 amp is sufficient. If so, then it's likely a light issue.
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post #7 of 11 (permalink) Old 10-18-2018, 09:46 AM
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I heard the fuse blow. It was a very light "tink" as the light went out. I blew the 15 amp. My next move is to contact the company and ask if 15 amp is sufficient. If so, then it's likely a light issue.
Simple calculation... W =Amps x Volts... or Amps=W/Volts, so Amps for 45 W is 45/12 =3.75A... A 15A fuse us way enough for that, unless it takes some other load as well? If you heard the "tink", more likely something went in the headlamp...
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post #8 of 11 (permalink) Old 11-08-2018, 07:12 PM Thread Starter
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I'm just getting around to closing out the final resolution on the thread, though it was quickly resolved a while ago. After doing some troubleshooting, it was an internal fault with the light. The company quickly shipped a replacement. It plugged right in, worked perfectly (hi/low) out of the box. There is a really good spread of white light, better than the Triumphs Halogen. Overall, I'm pleased with the product's performance. No issues at all since install.
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post #9 of 11 (permalink) Old 11-08-2018, 11:57 PM
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Originally Posted by davidrb View Post
I'm just getting around to closing out the final resolution on the thread, though it was quickly resolved a while ago. After doing some troubleshooting, it was an internal fault with the light. The company quickly shipped a replacement. It plugged right in, worked perfectly (hi/low) out of the box. There is a really good spread of white light, better than the Triumphs Halogen. Overall, I'm pleased with the product's performance. No issues at all since install.
Glad to hear it all worked out! Unique looking light too. I don't think I've seen it on any other Bobbers.

Each one matters.
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post #10 of 11 (permalink) Old 11-09-2018, 05:53 AM
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Originally Posted by davidrb View Post
I'm just getting around to closing out the final resolution on the thread, though it was quickly resolved a while ago. After doing some troubleshooting, it was an internal fault with the light. The company quickly shipped a replacement. It plugged right in, worked perfectly (hi/low) out of the box. There is a really good spread of white light, better than the Triumphs Halogen. Overall, I'm pleased with the product's performance. No issues at all since install.


what headlight did you use and where did you get it (link if possible) if you don't mind sharing

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that does not grow in every ones garden.
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