Hi all, great forum here. I've got lots of info from this site for various projects. I'm working on converting my dirtbike from AC to DC and using LEDs instead of incandescent/halogen. I've got a rectifier in and LEDs for taillights and brakelights and need to test something for the headlights now. I haven't been able to find a product that matches my needs or the individual components to put it all together. I'm hoping someone here can help out.

Here's the requirements I'd like to use and a quick explanation why:

• MR16 housing
  • My existing headlight unit has room to snap-in two MR16 style bulbs. I'd like to stick with this to reuse existing parts. I need the "Standard 50mm tapered MR16 housing" like this here.
• Constant current drivers with 8-14V DC input
  • As this is on a dirtbike with a dirty power supply that will have varying voltages, I'd like to run a constant current driver
• 10-15 degree beam
  • I'd like to start here and test a narrow beam. I may end up running one 40ish degree LED for a "high beam" as well as a narrow beam but, I want to test the narrow beams now
• ~3W of cool white
  • I think this is about the power i need. 3x1W or 1x3W or somewhere in this neighborhood should be about right

I've found tons of 1-3W LEDs in a MR16 housings but nothing that quite matches my needs...the ones with the drivers don't have the beam i need or the ones with the right beams don't have the driver. If I could find a 3W LED with no resistors in the MR16 housing, then I could run an external driver and be set. I've found the individual LEDs, lenses, and constant current drivers...but no housing that i can find to put them all together.

Anybody come across either a product that fits these needs or the components? I think just a bare MR16 housing with heatsink and room for 3W would do the trick.

Thanks!

 

Since this is a dirtbike, I'm not sure if it violates the TOS here. But I did see a bike headlight LED light project on Instructables that used a bunch of stuff from LEDSupply.com. If you search for that you can probably get what you're looking for.

 

Thanks for the info. I saw some similar projects on instructables but i think my biggest limitation is trying to do this in a MR16 housing. I just now found a guy on there who disassembled some MR16 halogens to replace with LEDs, but I'd still prefer to buy something.

thanks for the LEDsupply.com link, i hadn't seen that site. They're having some issues right now, but I'll look again later to see if they have the right housings.

I saw the TOS about automobiles, but thought that this wasn't a violation being an off highway vehicle. It could just as well be a bicycle. my apologies to the mods if i'm out of line.

 

http://www.reuk.co.uk/How-To-Make-MR16-LED-Spotlights.htm

 

I think that if a dirtbike has stop and taillights, it is street legal, and not restricted to the track.

Any opinions on this?

 

Its modification of a vehicles lighting.. It should be locked to be on the safe side. IMO

There is TONS of information on the internet about this.. Nothing new can be stated here.