For anyone who may be interested in how the "other light" is coming on.
Today I received some XP-G R3s and so could finally fit and finish my prototype light.
Beam shots, etc will follow tonight.
L.
Bike Forum
[closed]
Bike light......XP-Gs arrived today...
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Posted 2 years ago #
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I like it!
Posted 2 years ago # -
Looks excellent 8), what sort of power is it?
Posted 2 years ago # -
Hi.
KKF, thanks.
As these are the XP-G R3 I should be seeing in excess of 1800 lumens tonight.
Got to go out for a bit now. Back later.
Ta
L.
Posted 2 years ago # -
Hi.
Just been to an area I've not visited before, but I managed to get some shots. The main Tree in the light is approximately 40 metres from the light.
Used my currently road-bound MTB.
From an approximation of eye position.
Away from the bike.
Illumination just forward of the front wheel.
The Ring.
Camera was set to:
F4
6 seconds
WB; DAYPhew !.
L.
Posted 2 years ago # -
Really good work there mate.
I never ever thought I would say this about a bike light, but here goes......... That is miles too bright.
How long can it run for on full like that with a single battery charge?
Posted 2 years ago # -
Dimmadan.
The light is configurable to produce lower outputs, if required. I prefer to set my lights to have just a hi and low setting. But even these can be adjusted for lower brightness levels.
I've not done a full run with these LEDs as they only arrived this morning. I'm using a 14v 4.4Ah Battery from Smudge. I'm out tomorrow night starting from Brandon Country Park, so will see how long I get from the light then, hopefully. But expect 2.5 hours + on hi (conservative estimate)
Were I to use one of Smudge's latest batteries, which I believe pack a few more Ah, then I'd expect an even longer run time.
Cheers.
L.
Posted 2 years ago # -
Top marks mate, wish i had the time and knowledge to do the same as would love to give it a go.
Well done as I looks and sounds like it may perform perfectly.
Next test is the rain test
Posted 2 years ago # -
Dimmadan.
Yes, preventing water ingress has been a major pre-occupation for me with this light.
What you see here is a prototype. A one-off produced by Mr Hunt, master of metal. A great guy with a beaver mill and a bridgeport lathe amongst the other items in his Garage !.
So, when I designed this one light. I did so with the type of machinery available, in mind. Hence the simpler clamping ring, for this light only.
I intend to make a small run of these lights for me and some friends. The new version will have a different lens assembly incorporating waterproofing measures.
The rear of the light uses nut-fixed, IP rated switches and other hardware which will resist complete submersion.
So I am expecting total water proof performance. That is one of my main goals.
I am also working on a complete water proofing of the battery too, amongst other things...
L.
Posted 2 years ago # -
Holy Shit. Good work mate.
Posted 2 years ago # -
Sounds good, I will stay in touch as I fancy one
Posted 2 years ago # -
The light looks fantastic.....
However - either your photography skills are a little lacking, or it's a tad too bright.
Posted 2 years ago # -
Dimmadan.
I'm grateful for your remarks. I've still got to finalize the new version. Everything is in place, parts are ordered, etc. I'm almost there. I mau be able to squeeze a few more in, but it wouldn't be available as soon as another light being shown on this forum.
I'm hoping to have my light on my bars during November.
Lowey.
Thanks. Its taken around two months to get this far, loads of hours on the CAD and dealing with suppliers. Its been a major effort.
L.
Posted 2 years ago # -
what is your price?
Posted 2 years ago # -
TAFKAS.
Yeah, I was thinking that myself tonight. I set the camera to the settings I've seen posted on here in another thread, which I believe to be the "unwritten" standard between us light builders for night shots.
However, in mitigation, I must point out that these LEDs are like nothing I've photographed before.
Using Canon PowerShot S80, set to the figures mentioned above.
Oh, except for "The Ring" shot. I had to change settings to get a side/birds eye view of the light-head, which didn't just show a bright white blur.
L.
Posted 2 years ago # -
RH.
This was originally a project for me a few friends.
I have yet to finish and reveal the latest and improved version. But wanted to post my progress so far.
My presence in the sitting room has just been requested, so I'll have to go now.
Mail me if you wish.
Thanks.
Luminous.
Posted 2 years ago # -
erm...............wow
Posted 2 years ago # -
Where will the LED light wars end? My set up of home mede lights with a trifling 1850 lumens between them ( theoretical) is really not going to cut the mustard no more.
I think 6x MCEs must be the future - thats 5400 lumen thoretical
Mind you need half a power station to power them
Posted 2 years ago # -
Imagine having two, one either side of the stem FFS !!!!!!!!!!!!
:lol: 
Posted 2 years ago # -
Can I see the leaves frying?
Posted 2 years ago # -
madness lol looks good. I find riding with my hope vision four on setting three like riding in daylight. If you can somehow fully waterproof it you will make some money in the diving crowd good luck
Posted 2 years ago # -
TJ.
Yeah, I don't suppose we'll ever gain a consensus on what is sufficient to ride with. But its interesting making lights.
I Suppose as we see those such as the clever bods at cree design LEDs with ever greater outputs, that we may just use fewer LEDs per light in the future.
KKF.
Yeah, that would be insane, I hadn't considered running two on one bike. I might find no one wanted to ride with me then Mick.
Thanks. Yes, pressure waterproofing is a distant goal. But as my neighbour is a diver, I've got a tester on my door step. So thats a start. But got to get this one finished first.
L.
Posted 2 years ago # -
Thats just awsome!! Great work L. Glad to see it up and running, and lets be honest, giving out more light than is really needed!!
Liked the look of the housing when you'd just done that. Hope the water testing goes well and keep us posted as to how you go on.
Well done. Skippy
Posted 2 years ago # -
We make stuff that monitors stuff at the bottom of the sea, if you need any help sealing it, give me a shout.
Posted 2 years ago # -
Skiprat.
Thanks. Yeah, it'll be on-trail testing tonight, with perhaps the odd stop for a quick pic.
When the final version housings are available, then water testing will commence.
I will certainly be happy to post updates.
Cheers
L.
Posted 2 years ago # -
Wors.
Thats a very useful offer and one I may well be interested in at a later date.
Many Thanks.
L.
Posted 2 years ago # -
I completed my first ride with the light last night.
The light performed faultlessly. After 90 mins of riding, switching the output between hi and low, the medium voltage warning light still hadn't come on, so I've still no idea how long I can get out of the light using a 4.4Ah battery, other than to say that its going to be usefully longer than 2.5 hours.
Think I may have to order a smaller battery, just to get an idea of run time from one of those.
Also, I will have to do some rides on hi only to ascertain the full power run times.
Incidentally, one of our party was using, only for the second time, his DX magicshine light. However, it failed and so I had to lend him my helmet light. An old single LED XR-E giving about 230 lumens at 1A. I was quite impressed with this little light. Using an optic I have modified, it pushed out onto the trail, every one of those 230 lumens and he did the whole ride with that one light on his bars.
Anyway, thats the first ride results and they are very encouraging.
Cheers
L.
Posted 2 years ago # -
Sounds promising. If you want a tester that rides 3 nights a week for 2 hours + each ride then let me know.
Posted 2 years ago # -
Do you know what the Vf of the triple xpg is luminous??
Posted 2 years ago # -
Dimmadan.
Thanks. All offers of help are gratefuly received and not forgotten.
Kinda666.
Not sure what you're asking there, are you referring to a cutter item ?.
If so, then I would have thought that cutter would provide that info.
I believe they sell a triple LED on a 20mm round MCPCB.All I know is that the data released by Cree indicates a Vf of around 3.4v PER LED.
Why do you ask ?.Ta
L.
EDIT: Really grateful to all for the posts and the interest. Perhaps I should make a few more available
L.
Posted 2 years ago # -
Hi luminous, can't see pics on my work pc and couldn't remember what set up you had, thought it was triple xpgs! I'm pretty sure my Xpe's were pushing out around 9.6Vf and need some headroom for the bflex to work, as i'm using an 11.1v li-ion pack its quite tight! (have a 14.8v pack too but obviously heavier than the 3 cell pack) Thought you may have measuerd the forward voltage thats all!
Posted 2 years ago # -
Kinda666.
Ok, no worries. I've seen a cree document displaying a graph showing an XP-G LED to have around 3.4v Vf at 1A.
I feel the layout of the LEDs as I have them in my light is useful, as from the pics earlier in this thread (which unfortunately you can't view), I still get light thrown down right in front of the wheel, without any need for a "liberator" type feature. Which is a good thing as it would be diificult to include a second, downward aperture for light, in a housing design such as mine.
L.
Posted 2 years ago # -
Just got home and now i remember the light!
What diameter are your housings?? Quite fancy the 7up cutter kit!
Posted 2 years ago # -
Kinda666.
Thanks for the interest.
I think I can see where you're going with this.
If I'm correct, then I've already been there...
Mail me if you wish.
Cheers.
L.
Posted 2 years ago # -
At work till 6pm so i'll mail you when i get in!
Posted 2 years ago #
Topic Closed
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