Building L E D Night Lights

diamondback-man2 · *by **diamondback-man2** on Wed 24/Mar/10 9:50pm*

Hi I built one of Tojja's LED lights back in 07 using 3xSeoul Seminconductor P4 U-bin LED's (think 105 lumens each)
Looking to upgrade to new tech whats the latest in LED's now.

znomit · *by **znomit** on Wed 24/Mar/10 10:11pm*

diamondback-man2 wrote:Hi I built one of Tojja's LED lights back in 07 using 3xSeoul Seminconductor P4 U-bin LED's (think 105 lumens each)
Looking to upgrade to new tech whats the latest in LED's now.

SSC still stuck at U bin, though now it split into U1,U2,U3 ... U3 is 115lm @ 350mA and U1(likely what you have from 07) is 95

Cree...
XPEs R3 126lm @ 350mA
http://www.cutter.com.au/proddetail.php?prod=cut829

XPGs R5 145lm at 350mA (but a bigger die so wider beam)
http://www.cutter.com.au/proddetail.php?prod=cut937
You'll need new optics too
http://www.cutter.com.au/products.php?c ... -C%2FE%2FG

Fraser · *by **Fraser** on Sat 27/Mar/10 8:15am*

I just thought I would post up my lights that I am building. It is for my Schwinn Newsboy. I bought the chrome steel mudguards last week, the light pod is a VW Beetle 1958-63 italian spec front indicator.

I already have a shimano dynamo front hub which has a light sensor as a switch running a 6v 3w bulb. This means when I am riding it turns on automatically when it is dark. However I wanted to clean up the lines and go for an integrated unit.
Couple of issues I need to overcome, the mudguard is more curved than the VW front wing and needed to be sanded to the correct shape. I need to make a internal housing as the VW one would normally be mounted from below and will foul the bike tyre.
This is an initial mock up to see where it looks best.

ape · *by **ape** on Sun 28/Mar/10 9:05am*

pretty!!!

Are you hoping to get a beam of light through that diffuser?,. or just an easily seen all round glow? have you decided on what your light source will be?
It's not really the kinda thing I'd make.., (I'm more a function over form kinda guy,) but I'd love to see how it comes out in the end..,

FLATULENTFRIEND · *by **FLATULENTFRIEND** on Sun 28/Mar/10 3:31pm*

Not making but repairing….gluing my little Cateye 3 LED lights back together after the internals self destructed.

Sims · *by **Sims** on Mon 3/May/10 3:22pm*

After getting my head around building a triple Cree XR-E light on the cheap... I'm wondering if it might just be easier to buy something complete...

Magicshines seem pretty hard to beat for the price.

Your thoughts?

swtchbckr · *by **swtchbckr** on Mon 3/May/10 3:36pm*

Sims wrote:After getting my head around building a triple Cree XR-E light on the cheap... I'm wondering if it might just be easier to buy something complete...

Magicshines seem pretty hard to beat for the price.

Your thoughts?

LOL

dont get people started...

yep. got some, and they're fine.

danose · *by **danose** on Mon 3/May/10 3:46pm*

who said you can have too much light - check out what eric@NL is working on :crazy:

9 * XPG (so about 3600 lumens!)

Sims · *by **Sims** on Mon 3/May/10 3:51pm*

I want a lot of light... But its surprising how quickly the costs add up for all the wee bits and pieces... That, and the lack of access to milling machinery for making swanky heatsunk casings...

swtchbckr · *by **swtchbckr** on Mon 3/May/10 4:25pm*

danose wrote:who said you can have too much light - check out what eric@NL is working on

9 * XPG (so about 3600 lumens!)

JEEEZ. and here i thought the latest from Cutter (2600Lumens) was excessive!

RussS · *by **RussS** on Mon 3/May/10 4:31pm*

danose wrote:who said you can have too much light - check out what eric@NL is working on

9 * XPG (so about 3600 lumens!)

Damn - I raced Baja with less light than that

danose · *by **danose** on Mon 3/May/10 4:32pm*

RussS wrote:
danose wrote:who said you can have too much light - check out what eric@NL is working on

9 * XPG (so about 3600 lumens!)

Damn - I raced Baja with less light than that

yeah - but as we all get older and our eyes get worse more light is all good :thumbsup:

CleverNickName · *by **CleverNickName** on Mon 3/May/10 4:47pm*

Sims wrote:After getting my head around building a triple Cree XR-E light on the cheap... I'm wondering if it might just be easier to buy something complete...

Magicshines seem pretty hard to beat for the price.

Your thoughts?

I built 5 sets of LED lights about 2 winters ago, by the time all the bits were added up there was about $1000 of materials before we started building them (about half of that was batteries and chargers). Once you add your own time to the cost, buying lights starts looking pretty good. You don't get any of the tinkering in the shed that goes with building your own but not everyone is into that.

Sims · *by **Sims** on Mon 3/May/10 4:52pm*

Could i power two Cree XR-Es (or other??) on a single 8.4v RC car battery? That way I'm using existing chargers/batteries?

RussS · *by **RussS** on Mon 3/May/10 4:52pm*

danose wrote:
RussS wrote:
danose wrote:who said you can have too much light - check out what eric@NL is working on

9 * XPG (so about 3600 lumens!)

Damn - I raced Baja with less light than that

yeah - but as we all get older and our eyes get worse more light is all good

.

True, but I don't ride at 100mph at night these days either

Building L E D Night Lights

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