Mountain Bike Reviews Forum banner
1 - 20 of 88 Posts

·
Registered
Joined
·
54 Posts
Discussion Starter · #1 ·
This is the best light for bike in the world - 6000+ lumen from 10x Cree MC-E 5C in neutral/warm white color about 4000K ...

I wanted to design perfect bike light with low beam for using in road traffic and with powerful high beam for off road drive.

I used housing from HDD cooler box Scynthe Himuro, LEDs from Cutter (with new price and free shipping it costs only 8.5eur), new powerfull driver Hyperboost from Taskled and small reflectors from DX.

I have 3 switches. Left - low and high mode, middle - switch on/off and right - low/high beam.

Low beam is produced with 5x Cree MCE on bottom of the light. High beam is done with all 10x MC-E switched on.

Some pictures here:

















 

·
Registered
Joined
·
6,453 Posts
Just out of curiosity I have to ask: How much current are you supplying to each die?
Second question, Am I right in assuming you are not using optics for the low beam MC-E's?
Third question, with 8 X 18650 cells, how much run time do you get on high with all LED's powered? I'm thinking less than an hour. Am I right? :confused:
 

·
Bigger is better!
Joined
·
725 Posts
pepko said:
This is the best light for bike in the world
Why?

That´s like saying that a Ferrari is the best car for buying groceries at your local supermarket. But hey - if you like carrying way too many batteries around that´s your business.

With the right optics, I would very much like to see a person (other than pro DH racers riding DH at night) that needs more than 2000 lumen divided between a headlight and a barlight to do the nightriding he/she wants.
 

·
Registered
Joined
·
54 Posts
Discussion Starter · #7 ·
Cat-man-do said:
Just out of curiosity I have to ask: How much current are you supplying to each die?
Second question, Am I right in assuming you are not using optics for the low beam MC-E's?
Third question, with 8 X 18650 cells, how much run time do you get on high with all LED's powered? I'm thinking less than an hour. Am I right? :confused:
1. Hyperboost can provide max current 1300mA, it is 650mA to each die ...

2. Right, I am not using optics for low beam, only one big mirror ...

3. From 8x18650 it takes 2.85A on high mode and all 10xMCE turned on. So runtime is less than 1 hour. But on low mode it takes only 1.23A and I think I can go still lower - I think 100mA per die could by enough ...
 

·
Registered
Joined
·
3,330 Posts
8 x 18650's won't supply more than 1.8Ah's each to 1 MC-E, so with 10 LED's sparked up your going to get 1.5Ah area to each MC-E, still lookng at 5000lumens though.

The lower 5 don't have any reflectors or optics at all, so there just totally flood like ??
 

·
Registered
Joined
·
596 Posts
Wow!!!!! That is a good idea for the low beam, lots of spread. I like that light! I have several batteries for most of my lights. I have smaller batteries for shorter rides and larger batteries for longer rides. The Li-ion polymer are nice for a larger capacity battery. I want to say again; pepko, that is a great light. However, you need to use shrink tubing rather than tape for your splices. That f'ing tape will undo itself and you'll get shorts. James
 

·
Registered
Joined
·
1,177 Posts
that light is pretty awesome. you can't have too much light. I ride aggressive AM, and sometimes Dirt jump a little in the dark. I would ride Dh at night if my dh biuddies had lights. I currently run a 3x xre r2 on the helmet and a 3x mc-e on the bars, it's ok, but not perfect. I'm working on a 3x mc-e for the helmet, that should fit the bill
 

·
Registered
Joined
·
105 Posts
Nice beams both the high and the low. I can not help but feeling that 5 pure flood MCE's is overkill for the low but, but there is no denying that it looks to work and you will have a good view where your front wheel is...

Are you switching from high to low just by switching out the 5 MCEs? going straight from 10 to 5 or do you go via off? I am not sure what the output cap is in the hyperboost but I know with the old Chippo and single die emmiters that was a sure way to kill Leds. I was not doing it on perpose but had a short that cost me 6 leds when i tried making a 9 xre light. The Chippo had big output caps though so you may get away with it but you may be heading for early failures.

Ifor
 

·
Registered
Joined
·
54 Posts
Discussion Starter · #17 · (Edited)
Thanks for your positive feedback ... I add some new beamshots ...

I have to change resistor for low mode, because I don't see any difference between high mode and low mode ...

Camera settings: F3.5, 1/15, ISO2500, WB 5000K
1x Ultrafire [email protected] DSVMI high mode Sekonix Col#1


2x Ultrafire [email protected] DSVMI high mode Sekonix Col#1


Low beam 5xMCE - low mode - 0.9A from 8x18650


Low beam 5xMCE - high mode - 1.41A from 8x18650


Low+High beam 10xMCE - low mode - 1.23A from 8x18650


Low+High beam 10xMCE - high mode - 2.85A from 8x18650 (that is 2.85A*29.6V=84.3W !!!)
 

·
Registered
Joined
·
43 Posts
Looks great. Love the light output at low beam, great spread and coverage.

So, you are running 40 LED's off of one Hyperboost? What kind of load are you putting on it, and do you have any heat related issues? I am working on a project and am looking to run up to 20-24 LED's and was interested to see what kind of loads the Hyperboost can take. From my calculations your Hyperboost is dissipating about 9watts of power. That seems kind of high, and it would seem to me that you would have heat issues with your driver.
 
1 - 20 of 88 Posts
Top