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LED Headlamp install 1980 KZ750 16 May 2015 14:54 #672391

  • fischetg
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Using the semi-sealed OEM light fixture and just changing the bulb!
This worked out very well. It was a bit of a struggle getting the wires situated in the housing. I then moved the female headlamp connector outside the headlamp housing and weather-proofed the connection.
So far, daytime is very clean and bright. I will ride at night and update soon.
A very nice upgrade for $35.00 Check it out.


This is the title of it on Ebay:
5th Gen H4 LED bulb copper braid 3000 lumen CREE 6000K
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LED Headlamp install 1980 KZ750 16 May 2015 17:34 #672413

  • 650ed
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Interesting. Let us know how the light pattern is at night. It is normally recommended that a LED specific headlight reflector and lens be used with an LED lamp in order to direct the light properly, so you might see a different light pattern than the regular halogen bulb would throw. Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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LED Headlamp install 1980 KZ750 17 May 2015 10:13 #672486

  • The_Proletariat
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I am also interested in how this plays out. I have never had an inexpensive LED last longer than a regular light bulb.
1982 Kawasaki KZ550 LTD

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LED Headlamp install 1980 KZ750 17 May 2015 18:04 #672552

  • kaw-a-holic
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Heat is the real issue for the longevity of the bulb. I know I was looking at those but the good bulbs w/ a heat sink on them were a $100+ and we're not DOT certified. I sent the extra jack and went with the Truck-Lights 7" round LED sealed light replacement. They are super bright have a good pattern and use way less voltage.
Would like to see some night pics if you can manage.
Jon
1977 KZ1000a1
Mesa, AZ
Phoenix Fighter Project

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LED Headlamp install 1980 KZ750 17 May 2015 18:22 #672567

  • 650ed
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+1 Many folks don't realize heat is such a problem for LEDs because if you hold your hand in front of one it doesn't feel hot like an incandescent lamp. The problem is the heat builds in the LED junction, so you most likely won't feel much with your hand in front of the LED. Thermal management of the LED is crucial to its longevity, and even though the LED may not fail (as in burn out) if run in an over heated condition the elevated junction temperature will lead to its early deterioration and lower light output. Of course, good heat management can prevent these problems. Some of the big boy LEDS are even liquid cooled. Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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LED Headlamp install 1980 KZ750 18 May 2016 07:21 #727190

  • 78z1Joe
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Hi, I know this is an old post but I am wondering how is the life span, mounting and satisfaction anyone has had with their LED lamps? Headlamp, turn/running, brake/stop and gauges ?
Thanks,
1978 KZ 1000
1982 GS 300 training bike
Previous Rides...
75 RD 350
72 CB 500 Four
72 SL 125
71 CT 70
69 3 1/2 HP mini bike

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LED Headlamp install 1980 KZ750 25 May 2016 00:55 #728367

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650ed wrote: +1 Many folks don't realize heat is such a problem for LEDs because if you hold your hand in front of one it doesn't feel hot like an incandescent lamp. The problem is the heat builds in the LED junction, so you most likely won't feel much with your hand in front of the LED. Thermal management of the LED is crucial to its longevity, and even though the LED may not fail (as in burn out) if run in an over heated condition the elevated junction temperature will lead to its early deterioration and lower light output. Of course, good heat management can prevent these problems. Some of the big boy LEDS are even liquid cooled. Ed

LED is similar to a semiconductor. The oldrule of thumb was op life dropped by about 1/2 for each 10C rise in operating temp. Problem is the max limit for safe junction temp is about 140C so you have to have enough heatsink to keep it below that. Vibration is also a killer but that's a given for anything on a bike.
1979 KZ-750 Twin

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LED Headlamp install 1980 KZ750 25 May 2016 00:59 #728368

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78z1Joe wrote: Hi, I know this is an old post but I am wondering how is the life span, mounting and satisfaction anyone has had with their LED lamps? Headlamp, turn/running, brake/stop and gauges ?
Thanks,

I installed LED lamps for turn signals/running lamps and gauge lamps. 100% so far.
1979 KZ-750 Twin

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