Madkat LED Build

[madkat]

I have started my build

http://mycomas.com/tmp/LED HOOD.pdf

 

[ghellin]

Awesome I can't wait to see this up and running! Take lots of pics of the build!

 

[johnsonj]

That pic of the led doesn't do justice to how bright it is. All I can say is WOW it's bright.

 

[zxanth]

Ooo.... Ahhhhh... Man I wish I could do that. When I get get enough funds this will be my next project. Please take lots of pictures and give lots of directions.

 

[madkat]

Parts list

Meanwell Group buy
QTY 1 ***Meanwell HLG-185-48B***
QTY 1 ***Meanwell HLG-240-48B***
Rapid LED
QTY 66 ***Cree Royal blue w/ 60* optics***
QTY 42 ***Cree Natural White w/ 60* optics***
QTY 12 ***Cree UV-Violet w/ 90* optics***
Radio Shack
QTY 2 ***RadioShack 2160232 1k Ohm 1/2W 5% Carbon Film Resistor Pk/5***
QTY 4 ***RadioShack® 8-Position Dual-Row Barrier Strips Model: 274-670 | Catalog #: 274-670***
QTY 3 ***Chassis-Type 4-Position Fuse Block Model: 270-742 | Catalog #: 270-742***
QTY 3 **1.0-Amp 250V 1¼x¼" Slow Blow Fuse (4-Pack) Model: 270-1021 | Catalog #: 270-1021***
QTY 1 ***75-Ft. UL-Recognized Hookup Wire (20AWG) Model: 278-1222 | Catalog #: 278-1222***
QTY 9 ***10K-Ohm Horizontal-Style Trimmer Model: 271-282 | Catalog #: 271-282***
Metals4u
QTY 9 *** 1 x 1/2 x 1/8"x72" Aluminum 6063 ***
Home depot
QTY 1 *** 1 in. x 48 in. Aluminum 1/16 in. Model # 43090 Store SKU # 477707***
QTY 1 ***Arrow Fastener 3/16 in. Medium Aluminum Rivets (50-Pack) Model # RMA3/16IP Store SKU # 471650***

 

[*reefermadness*]

Madkat, would you mind maybe giving a price rundown on what everything ended up costing you? I am seriously considering building an LED fixture, and want to see if the cost will be do-able on a college student's funds. Thanks

 

[ghellin]

Message sent about those fuses.

 

[madkat]

LED's are mounted, wiring has begun

 

[madkat]

lesson learned, make sure to check all LEDs against grounding on the heatsink.
lost 9 fuses and then 2 LEDs because I chipped them with the screwdriver.

will light them tomorrow wihen Radio shack opens.

 

[ghellin]

Glad you had the fuses!


To those who don't know, when soldering LEDs its best to have the wire coating touch the soldered joint not stripped way back. Doing this will help eliminate shorts to the heatsink.

 

[madkat]

Meanwell Group buy - $193.76
QTY 1 ***Meanwell HLG-185-48B***
QTY 1 ***Meanwell HLG-240-48B***
Rapid LED - $582.80
QTY 66 ***Cree Royal blue w/ 60* optics***
QTY 42 ***Cree Natural White w/ 60* optics***
QTY 12 ***Cree UV-Violet w/ 90* optics***
Radio Shack - $82.34
QTY 9 ***RadioShack 55050123 : 1 Ohm Cermet Power Wirewound Resistor Model: 10W1D0***
QTY 4 ***RadioShack® 8-Position Dual-Row Barrier Strips Model: 274-670 | Catalog #: 274-670***
QTY 3 ***Chassis-Type 4-Position Fuse Block Model: 270-742 | Catalog #: 270-742***
QTY 3 **1.0-Amp 250V 1¼x¼" Slow Blow Fuse (4-Pack) Model: 270-1021 | Catalog #: 270-1021***
QTY 3 ***75-Ft. UL-Recognized Hookup Wire (20AWG) Model: 278-1222 | Catalog #: 278-1222***
QTY 9 ***10K-Ohm Horizontal-Style Trimmer Model: 271-282 | Catalog #: 271-282***
Metals4u - $111.06
QTY 9 *** 1 x 1/2 x 1/8"x72" Aluminum 6063 ***
Home depot - $12.21
QTY 1 *** 1 in. x 48 in. Aluminum 1/16 in. Model # 43090 Store SKU # 477707***
QTY 1 ***Arrow Fastener 3/16 in. Medium Aluminum Rivets (50-Pack) Model # RMA3/16IP Store SKU # 471650***

TOTAL = $982.17

 

[madkat]

AHHHH, I had light and then popped the 3 white fuses.

Blues stayed on, with the exception of 2 UV, they won't light with the battery, so I think they are bad.


Ghellin,

I cannot get my strings to dim with a pot< can I not hook a pot to the blue, white on the HLG-185H-48B or 240?

 

[ghellin]

Is the pot powered by a 10v source?

 

[madkat]

Is the pot powered by a 10v source?

I have a 9v powering it. See diagram

POT
o
o...o...o
B.......W
....+...-
bottom line 9v power​

 

[ghellin]

Thats your problem look at this diagram.

 

[madkat]

So I need an arduino to dim my LED's. I cant just use a pot? or would I just use 1 feed from the driver and not both blue and white from each one?

 

[ghellin]

No, just look at the pot from left to right you want V+... signal out...Ground.

 

[ghellin]

Also check your 9v with a multimeter since there is virtually no load, it could be pushing 12v or even more.

 

[madkat]

first problem was my "dc" was actually a 9v AC.... so it went 120V ac to 9v AC. my other one is registering 13 but it is a 9v 300mA DC

 

[ghellin]

Yep that is common for dc converters you can try limiting it with a resistor not sure which one but if you have a few you can play with you might be able to get it adjusted below 10v