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Old 10-12-09, 05:47 AM   #1
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Join Date: May 2008
Location: Australia
Bikes: Surly KM, Gary Fisher Xcal 29er
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1100lm XPG 'K-lite race' weight weenies LED bike light

Introducing the K-lite race

a striped down racing light for weight weenies & racers...

Super lite, super bright, Lm per gram, the lightest on earth...for now
1100lm max, fully user programable via a constant current regulator, no PWM flicker here
Battery & thermal protection
Handle bar remote switch w battery warning LED built in
Data port for temp logging
Only 186g! incl battery (race version)


XPG vs XPE (both @ 1000mA)

Well I just got back from my first ride...XPG style...

& to put it in a nut shell its like this...

XPE has good hotspot
XPG has just as good hotspot, but also great fill.

The pics show the XPE with no fill & the XPG will no hotspot...I guess thats digital cameras for ya, or maybe just mine...its on as full manual as I can get...

truth is I love it, I can see in front & up the road + heaps of spill to the sides...the XPE with same optic was to narrow with out a headlight...but XPG is a great one light setup...

I like a bit more floody on the bar, spot on the suits me fine... :thumbsup:

OK here's the GOOD news!!

It runs cooler!!! Sweet... :yesnod: Thats what it looks like, as same trip, same drive current to LED, 2-3 deg cooler AMB & 10 deg difference in peak (XPE vs XPG)...2-3 deg AMB temp, I guess, would not make a 10 deg difference...need to do a few more tests to be totally sure

I have not hooked up the rest of the sensors yet...I will add 2 more TEMP, (case temp & AMB temp), RPM (speed) sensor (still building that), elevation gain/ loss, via GPS data add on... hook that up to the OSD,(on screen display) layed over the top of video footage of the beam pattern & ride...

now that would be sweet...

Again this is MCPCB temp not case temp...

Avab soon as DIY kit, light & 18560 batt holder (no batts), Full kit
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