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The 2-Stroke Garage => Turning Wrenches => Topic started by: Ballas03 on July 05, 2019, 06:17:14 PM

Title: Rd250 Honda headlight led
Post by: Ballas03 on July 05, 2019, 06:17:14 PM
Hi guys, back on the old form I found out about putting a Honda headlight in that takes an h4 bulb the rd25/350 bucket. This was nice because it now takes a halogen bulb, but my problem is I still want better light and the low quality 35w h4 bulbs keep blowing out. I was looking to do an led but everyone I see has a huge heat sink. Was wondering if anyone has put an led bulb in the Honda h4 housing.
Title: Re: Rd250 Honda headlight led
Post by: bracket maker on July 06, 2019, 11:05:14 PM
Quote from: Ballas03 on July 05, 2019, 06:17:14 PM
Hi guys, back on the old form I found out about putting a Honda headlight in that takes an h4 bulb the rd25/350 bucket. This was nice because it now takes a halogen bulb, but my problem is I still want better light and the low quality 35w h4 bulbs keep blowing out. I was looking to do an led but everyone I see has a huge heat sink. Was wondering if anyone has put an led bulb in the Honda h4 housing.


yes I have some experience running leds. no heat sink on this one.

www.2strokeworld.net/forum/index.php?topic=403.0


Title: Re: Rd250 Honda headlight led
Post by: BhamRD350 on July 06, 2019, 11:11:10 PM
I'm still running the original '75 RD350 headlight and am looking for upgrade options. I would like to go LED too, but this is the first I found about the Honda H4 Halogen. This would be an upgrade to the original headlight I'm sure. Any suggestions or alternate headlight setups you guys are using would be much appreciated.
Title: Re: Rd250 Honda headlight led
Post by: quocle603 on July 07, 2019, 07:39:09 AM
I am currently using a 1980s Honda Shadow lens that lets me use an H4 bulb. It's almost a dead match, got this information last year on the old forum. I tried to use a larger watt bulb but it did not pan out so well and ended up just going to the 35/35w bulb but now I can change out my bulbs!
Title: Re: Rd250 Honda headlight led
Post by: m in sc on July 08, 2019, 01:15:39 PM
cheap as dirt and work well. https://www.ebay.com/itm/Pair-H4-HB2-9003-20000LM-100W-LED-Headlight-Kit-Hi-Lo-Beam-Bulbs-6000K-White/254246152590?hash=item3b3240698e:g:pJQAAOSwU9hc1oJz
Title: Re: Rd250 Honda headlight led
Post by: quocle603 on July 08, 2019, 06:48:25 PM
Those are very cheap.
Title: Re: Rd250 Honda headlight led
Post by: Ballas03 on July 08, 2019, 07:13:42 PM
M in sc and that fits in the factor housing with Honda light
Title: Re: Rd250 Honda headlight led
Post by: m in sc on July 08, 2019, 09:12:49 PM
yup

Title: Re: Rd250 Honda headlight led
Post by: quocle603 on July 08, 2019, 10:06:34 PM
Will a stock system support that or would you need a vape system that would allow that much wattage?
Title: Re: Rd250 Honda headlight led
Post by: bracket maker on July 09, 2019, 09:01:25 AM
Quote from: quocle603 on July 08, 2019, 10:06:34 PM
Will a stock system support that or would you need a vape system that would allow that much wattage?


stock. the description is a little retarded. 100w is the equivalent hid bulb, its probably actually 12w of current drain. 20,000 lumens is bullshit obviously. stock bulb is nearer 800 lumens.


here we have a case where mark puts one part and I put a different part with a different price. who is right? we both are. I'm also using another property he is not. the one I posted is 2,000 lumen. it uses just 5w. I need this because I often run batteryless.  but to answer your question all led's use just a fraction of the juice other bulbs use. modern stator repair is the led conversion. no vape needed.
Title: Re: Rd250 Honda headlight led
Post by: Brad-Man on July 09, 2019, 09:53:00 AM
To be fair - the 20000 lumen figure was for the pair of bulbs.

Not sure you get 10000 per bulb, but a big difference.

I just wish the temperature range was a bit lower...
Title: Re: Rd250 Honda headlight led
Post by: bracket maker on July 09, 2019, 10:50:07 AM
Quote from: Brad-Man on July 09, 2019, 09:53:00 AM
To be fair - the 20000 lumen figure was for the pair of bulbs.

Not sure you get 10000 per bulb, but a big difference.

I just wish the temperature range was a bit lower...


the one I posted runs cold and is brighter than stock.
Title: Re: Rd250 Honda headlight led
Post by: m in sc on July 09, 2019, 11:14:16 AM
ive run those, the beam spread on those sucks, bad. on darker roads, etc, they are abysmal. i have the led bulbs like i posted on 6 of my bikes and no issues running them at 75-80 mph on dark roads at night.

in the city, i can see where it might not matter as much. .02
Title: Re: Rd250 Honda headlight led
Post by: IR8D8R on July 09, 2019, 11:31:06 AM
I think Brad-Man was talking about color temperature. 6000k is pretty stark white. H4 is probably around 4500k-5000k Stock even more "warm".

IR8D8R
Title: Re: Rd250 Honda headlight led
Post by: m in sc on July 09, 2019, 11:53:10 AM
it is, they are super white. i was responding tot he 'array' style light ben linked to.  :twocents:
Title: Re: Rd250 Honda headlight led
Post by: JakeS on August 19, 2019, 11:15:00 PM
I took a stock rd350 headlight and put an led bulb in it. You have to take a screwdriver and bend all the ears that hold the bulb part in.  Take the washer and o-ring out. Then I used a pair of pliers to pull out the filament. It left a thin glass bulb in side the lens. I used a screwdriver to break it up and dump it out. I then took a cheap H4 LED I had and cut the ears off so it matched the size of the washer that I removed. Put the bulb in them o-ring and last the washer tap the ears back down to seal it all up and you have a factory lens with an led bulb.

When I figure out how to resize my photos I will post some pics.