That sounds about right as my XREs trip the thermal @ 50C driven @ 1A in 14C ambient after about 5 minutes & the XPGs should run cooler.
My NGX HID ballasts & lamps turned up today so I'm off to my shed 
Bike Forum
[closed]
Resurrecting old Lumis
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Posted 2 years ago #
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Chucky - interested in converting a Trailtech headunit as I have one knocking about following a tree/hid interface which the bulb didn't survive. What heatsinking did you use, as the head unit is plastic in those lights, and I think partially responsible for their short life.
Posted 2 years ago # -
Question, what would people think about a super simple conversion . . . no fancy bFlex gubbins, one power setting (full) and no power switch . . .
Everything you can remove from the case makes the smaller conversions better . . . ie. less marginal on the heating front . . .
Just thinking out loud . . . a very simple 1A fixed constant current regulator could be better from a packaging POV than a bFlex . . . also a lot cheaper . . .
On the HID case coversion, yes, standard lumi HID case, the front of the case is lipped but I'm not using an O ring, just the thinnest layer of silicone, better solution as it doesn't recess the optic as much, front ID is almost a perfect fit with the MR11 sized optic . . . the pics above are all there is to it apart from the bFlex in the rear of the can, the HID case has LOADS of room in the back . . . very easy . . .
Fd
Posted 2 years ago # -
is there a group order going in. The postage is horrendous if you just need a handfull of items?
Posted 2 years ago # -
I'm off to spain Tomorrow (can't bloody wait).
when i get back early next week i'll put the order into Cutter mikey.
I'll mail you before hand to see what you want.
That driver off e-bay and a 6-8mm heatsink (maybe even thicker) will go into the back of a halogen can if you take the switch and power connector out.
The heatsink I have (also off ebay) is 5mm thick, whick I think is more than enough to run at 750ma.
cost if using a cutter triple XRE, optic, driver and heatsink = £38.
£34 if you use a XPG, and a cutter XRE optic. That should give close on 800lumens when run at the 750ma
Posted 2 years ago # -
Fergusd, if the light was able to run 2 -2.5hrs at full power then I would be interested in two conversions (my son and I). I like simplicity, plus maybe you could put an inline on/off switch in anyway?
Posted 2 years ago # -
Chucky, I'm sure some heatsinks could pop off a lathe to your spec, you will need 33mm diameter to fit in a standard lumi case, prob cheaper than ebay . . . I could probably even mill off a flat to clear the mounting rivnut . . .
If there's a way of saving on postage from cutter, would be interested in adding to an order if poss . . .
Some pics
20W Halogen Spot
Lumi HID
3 x XPG@1A, Medium OpAgain all identical exposures
Hope to get out for a night ride tomorrow depending on weather and my cold status
Fd
Posted 2 years ago # -
If you can turn me some heatsinks that would be great.
Can i get in touch next week?
I'll get in contact with everyone next week for a joint cutter order, if thats OK with everybody.
Wouldn't mind a quad XPG, hope they have the optics sorted by the time we order.
Posted 2 years ago # -
I'd like the quad too. Any heat sink that really fits would be great as a kind of insurance for the cost of the LED's.
Posted 2 years ago # -
I was going to use the quad in my HID light and a triple in the halogen can. Heatsink is much bigger in HID, just like fergusds
Posted 2 years ago # -
Also . . .
http://theledguy.chainreactionweb.com/product_info.php?cPath=48_49_61&products_id=986
Very small buck regulators . . . perhaps perfect for small lumi case conversions . . .
Fd
Posted 2 years ago # -
That looks good especially for those with the nimh batteries ie 13voltish.
Pity about it not being able to handlea fully charged 14.8volt one.
perfect size though, thats for sure
Posted 2 years ago # -
Has anyone had a chance to try the new Solarc HID bulbs yet and see how they compare to the latest LED lights? Just wondering if this might be a cheaper/easier upgrade for lumicycle HIDs.
Posted 2 years ago # -
Yes they are ba$tard bright - email me for details
Posted 2 years ago # -
They the same dims as the lumi ones ? cn you send me some info ?
ta
Fd
Posted 2 years ago # -
http://www.solarc.net & click on 'lamp'
Posted 2 years ago #
Topic Closed
This topic has been closed to new replies.
