DIY LED Signal (UPdates page 4 brake light)

[ozzarhomb]

Originally posted by nE0@Jan 16 2006, 02:57 AM

I'm not refering to how bright the LEDs are, but how visible it is.

 

Imagine the traffic lights replaced by 3 superultra bright LEDs. They wouldn't be very useful would they?

 

Bright is one thing, Luxeon LEDs are bright, and have very wide beam angle, which makes them great for signal light usage. They are expensive though, and require heatsinks. Amber ones particularly get significantly dimmer when they overheat.

 

Anyway, Luxeon LEDs, like most other components sold at SLT are ridiculously overpriced. I save by ordering in bulk

so being visible means more LEDs? brightness is measured in MCD or Lumens? sorry i'm quite new in electronics.

 

u mean even super bright LEDs at SLT is overpriced? so ordering in bulk from internet is cheaper? in bulk refers to wat kind of quantity?

 

are u the guy riding a ducati?

[Guest nE0]

Originally posted by ozzarhomb@Jan 16 2006, 11:14 AM

so being visible means more LEDs? brightness is measured in MCD or Lumens? sorry i'm quite new in electronics.

 

u mean even super bright LEDs at SLT is overpriced? so ordering in bulk from internet is cheaper? in bulk refers to wat kind of quantity?

 

are u the guy riding a ducati?

I think you don't get my point.

 

Brightness of individual LEDs is one thing, how visible it is also depends on how big the LED array is. For example, if one array is twice as big, it will be twice as noticable.

 

I order about $500+ worth of LEDs at one shot, so I save. Each LED costs like $15, so if each costs $1 less, its quite a significant savings.

 

And yes, i'm riding a Ducati.

[zzzz13]

hi all, wats the steps that i have to take note if i'm trying to DIY a row of LED for my brake lite.....any1 can explain or share?

[MC28]

Originally posted by nE0@Jan 16 2006, 07:57 PM

I think you don't get my point.

 

Brightness of individual LEDs is one thing, how visible it is also depends on how big the LED array is. For example, if one array is twice as big, it will be twice as noticable.

 

I order about $500+ worth of LEDs at one shot, so I save. Each LED costs like $15, so if each costs $1 less, its quite a significant savings.

 

And yes, i'm riding a Ducati.

So Neo, remember me??

 

You still got those quiet earplugs boh??

 

And what is the recommended LEDs which we can get from SLT??

[Guest nE0]

Originally posted by MC28@Jan 17 2006, 12:10 AM

So Neo, remember me??

 

You still got those quiet earplugs boh??

 

And what is the recommended LEDs which we can get from SLT??

Yea, of couse I remember you! I still have that helmet!

 

I have very few earplugs left, all are reserved for myself. Given away too many already, not enough for me.

 

As for LEDs, I've stopped buying from SLT already, cos they don't know what they are selling, and they don't have what I want.

 

For signal applications, Superflux LEDs work best. Costs about $1 each, all the latest superbikes and luxury cars use them for brakelights. Superflux and Luxeon LEDs, I can help you guys bring in if you want.

[Limsteel]

nEO:

Yes, agree that SLT guys really don't know much about their LEDs... when I ask them for specs... they just say put battery with any resistor can work liao... Again when I ask them about how bright (Lumen or MCD) and Peak Current they are unable to answer...

 

EBay sells LEDs with Full Spec... with Voltage & Current (Operating and Peak) also provide View angle, Brightness etc... At Ebay only 5W Pure White (& warm white) LED can produce 120Lumen of light... The 3W you bought really efficient... Got specs to see?

 

zzzz13:

Brake lights... was planning to do up one. Connect (a few up to you to decide) 3 or 4 LED in series (usually LED need about 3V+ to achieve max brightness, so 4 might be less bright), then wire them up parallel. Use 2 Different resistor one calculated resistor for max brightness and the other much higher resistor for a dimmer brightness.

 

Your Brake light connection should have 3 points. The -ve side to Earth (usually black wire) then High Resistor to the "Always On" and the Low resistor end to the other.

 

Attaching/soldering the array of LEDs on a solid support, mounting and securing is the hard part... connection to the point should be easy...

 

I will do that on another thread... as soon as I find out how to replace the stock relay to eliminate the fast blink...

[Guest nE0]

Different colors produce different brightness. White Luxeon III produces 80 lumens of light whereas the Amber one produces like 160, but the most intense one, the blue one, only rated 30lumens

 

Whatever it is, its not good for my eyes. Gotta use sunglasses when testing.

[Naz]

Originally posted by nE0@Jan 17 2006, 12:24 AM

For signal applications, Superflux LEDs work best. Costs about $1 each, all the latest superbikes and luxury cars use them for brakelights. Superflux and Luxeon LEDs, I can help you guys bring in if you want.

This sounds like a good deal if it's really bright.

 

Where may I get it or you have stocks of this?

 

Thanks!

[ozzarhomb]

Originally posted by nE0@Jan 17 2006, 12:24 AM

For signal applications, Superflux LEDs work best. Costs about $1 each, all the latest superbikes and luxury cars use them for brakelights. Superflux and Luxeon LEDs, I can help you guys bring in if you want.

hmm i would like to learn how to do LEDs for brake light leh. u have stock of red color superflux LED?

 

signal lights sounds interesting too but too bad we have to make a relay as well right? my limited electronic knowledge dunno can manage or not.

 

u mean u are gg to make a big order soon from overseas?

[MC28]

Originally posted by Naz@Jan 17 2006, 02:03 PM

This sounds like a good deal if it's really bright.

 

Where may I get it or you have stocks of this?

 

Thanks!

Agree...

 

nEo, the LEDs which u are talking about..I'm interested as well..Wana do up a LED rear signals..Would you mind scouting for us?I got a few friends who is interested too..

 

 

PS: Bring in more quiet plugs..My supply is running out..

[Naz]

Yea Neo, if can buy from u at $1 each, I want!!

[Limsteel]

Ebay 100 Superflux LED selling + Shipping is GBP20, Less then a Sg$1 each (about 60c only) but brightness is 6000MCD only...

http://i17.ebayimg.com/03/i/03/4a/c4/88_2.JPG

5mm Round convex part... 7.6mm base.

 

Neo the Superflux you mentioned what is the brightness?

[Guest nE0]

Originally posted by Limsteel@Jan 17 2006, 07:57 PM

Ebay 100 Superflux LED selling + Shipping is GBP20, Less then a Sg$1 each (about 60c only) but brightness is 6000MCD only...

http://i17.ebayimg.com/03/i/03/4a/c4/88_2.JPG

5mm Round convex part... 7.6mm base.

 

Neo the Superflux you mentioned what is the brightness?

10,000mcd, 45degree view angle superflux LEDs with 10 16,000mcd Nichawa 5mm LEDs.

 

http://www.picturesky.com/albums/userpics/10129/normal_DSCN8118.JPG

 

Two or three Luxeon III LEDs can do the same job

[ozzarhomb]

Originally posted by nE0@Jan 17 2006, 09:29 PM

10,000mcd, 45degree view angle superflux LEDs with 10 16,000mcd Nichawa 5mm LEDs.

 

http://www.picturesky.com/albums/userpics/10129/normal_DSCN8118.JPG

 

Two or three Luxeon III LEDs can do the same job

2 or 3 luxeon III will be like so many many times more expensive than the 10 superflux that u used right?

[MC28]

So nEo, will you do a order for us for the LEDs which you recommended?

 

$1 a LED is alot cheaper than those at SLT...Looking forward for ur reply..

[Guest nE0]

Ok, I can help you guys order, red and amber available.

 

$1 each. Let me know how many you guys want, by Friday.

 

Datasheet available here.

 

Basic info

Red > 70degrees, 3lumens

 

Amber > 70degrees, 2.5lumens (More powerful ones not available)

 

Maximum forward current - 70mA

Typical voltage drop (Vf) - 2.5volts

Maximum reverse voltage (Vr) - 10volts

[Strong Eagle]

Originally posted by nE0@Jan 18 2006, 04:38 PM

Ok, I can help you guys order, red and amber available.

 

$1 each. Let me know how many you guys want, by Friday.

 

Datasheet available here.

 

Basic info

Red > 70degrees, 3lumens

 

Amber > 70degrees, 2.5lumens (More powerful ones not available)

 

Maximum forward current - 70mA

Typical voltage drop (Vf) - 2.5volts

Maximum reverse voltage (Vr) - 10volts

Hey nE0 - what about green? I might trick out my Valk with some parking lot lights for that night effect... lots of chrome on the moto to reflect that lovely green color. With a 2.5 volt drop could run four with a resistor... might want 12 to 16 if available.

[MC28]

nEo, available in white instead??

 

How many of amber would i need for one side of my rear signals??

[d0n]

hrmz...how abt bringing in superwhite ones as well? im interested to boost up the superwhite light in my speedo

[Limsteel]

Acutally if your Signal or Brake Light cover is already tinted Orange/Red... You can buy the brighter White LED, the Cover will change the colour output. Unless you mount them in the open like Strong_Eagle for enhancement of look purpose... Also if your Cover are clear then you need the coloured LED.

[MC28]

Originally posted by Limsteel@Jan 18 2006, 07:47 PM

Acutally if your Signal or Brake Light cover is already tinted Orange/Red... You can buy the brighter White LED, the Cover will change the colour output. Unless you mount them in the open like Strong_Eagle for enhancement of look purpose... Also if your Cover are clear then you need the coloured LED.

This is exactly the reason why i ask for white LEDs...

[Guest nE0]

The colored lens will filter out the color (Red or amber) from the white light, so you end up with much less anyway.

 

Example, if you fiter red light from the white LED for your brake light, maybe 1/3 of the white light is red only, so you get 1/3 the overall light output of the LED. If you use RED LEDs, you get 100% of the red light the LED outputs.

 

Thats why normal brake lights need like twin 25watt bulbs, whereas just afew RED leds can beat them for brilliance. Most of the light is lost through the red lens.

 

White LEDs through a red lens will produce a pinkish light too!

 

Please let me know how many you guys need ASAP. The superflux LEDs are available in red, amber and deep amber only. I'll only order red and deep amber.

[MC28]

So nEo, how many LEDs would i need per side???

 

Got a few friends interested too..And i might need the resistor value which i will need inorder to connect the LEDs in series...

[Guest nE0]

Originally posted by MC28@Jan 19 2006, 01:12 AM

So nEo, how many LEDs would i need per side???

 

Got a few friends interested too..And i might need the resistor value which i will need inorder to connect the LEDs in series...

Well, I really don't know how many LEDs you need, depends on how many you can fit into the signal light I guess!

[MC28]

Originally posted by nE0@Jan 19 2006, 01:33 AM

Well, I really don't know how many LEDs you need, depends on how many you can fit into the signal light I guess!

Cos i'm planning to mount onto a mini circuit board before mounting it into the signal casing...

 

So when is the closing date?