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View Full Version : Bored tonight.. So I made an LED moonlight for fun.

DJ88
06-23-2003, 04:40 AM
5 3200mcd LED's

6V 800mA supply.

5 x 220ohm resistors wired to cathodes.

1 x 1Kohm pot for dimming(temporary till a controller is built)

three pieces of acrylic strip 3/4" wide for frame and shell.

Last shot was taken at full intensity on a four second exposure.

Really cool!!!!!!


http://members.shaw.ca/dj88/moon/led_1.jpg

http://members.shaw.ca/dj88/moon/led_2.jpg

http://members.shaw.ca/dj88/moon/led_3.jpg

http://members.shaw.ca/dj88/moon/led_4.jpg

http://members.shaw.ca/dj88/moon/led_5.jpg
ree-fready
06-23-2003, 04:46 AM
that is really cool. are you going to run them all to gether or are they going to be coming on in sequence?
DJ88
06-23-2003, 04:48 AM
For now all together. tho I am sure I could do a cool disco lighting sequence. :lol:
Jason McK
06-23-2003, 05:19 AM
That's really cool,
you might be able to make some coin selling those.

J
DJ88
06-23-2003, 05:24 AM
oh probably.. who has time to do that right now? :wink:
Bryan
06-23-2003, 06:20 AM
5 3200mcd LED's



Where did you get the LED's
DJ88
06-23-2003, 12:57 PM
Active. On First and Boundary.
StirCrazy
06-23-2003, 01:15 PM
Darren what angle of spread are thease LED's? Also did you just drill two little holes in the acrylic and push them in?

As you probably know I have been farting around with LED's for a bit now and I have a large colection of them. the problem I am at is I think the narrow beem LED's are to focused for a night light (you end up with spot lights) so I have ordered some high intensity wide angle ones.. hope they will work better.

Also I am curious as to whi you didn;t use the Luston Star you have.. I think that it with out the lense would give a nice wide spread, or was it to bright?

Steve
DJ88
06-23-2003, 01:32 PM
Steve,

For the spread problem I aimed them at the roof of the lid. Provides perfect dispersion. No spotlights. :D If I want a disco effect I rotate it so the LEDs point into the water. I just drilled 3/16th holes and then a countersink 13/16 holes partway in so the LED's protrude from the acrylic.

Haven't had a chance to use the Stars yet. I want to build an adjustable constant current source for them. Much easier to control.
ryan_p
08-22-2003, 04:20 AM
I really like your moonlight idea. What did it cost to make the strip? where did you get the power source?
DJ88
08-22-2003, 04:44 AM
umm acrylic cost me like $8 or something. Can't remember.

I had the DC source here. You can get them at any electronics supply store tho.
Wilty
08-22-2003, 03:15 PM
I assume the light is really dim and won't affect the fish or corals. Is it bright enough for you to view the tank at all in the night?
DJ88
08-22-2003, 05:33 PM
Is it bright enough for you to view the tank at all in the night?

Yup.


With the potentiometer you can vary the intensity.
UnderWorldAquatics
08-22-2003, 05:50 PM
has anyone found out if you can support corrals on led's?
I am thinking of using some of my good led's for the 29bowfront nano reef I am setting up. I have a bunch of royal blue 1 and 5 watt led's and also some high kelvin white. They have mcd ratings of about 1 million each.
Wilty
08-22-2003, 07:11 PM
Thats honestly too cool, I must copy you. Been a while since highschool electronics class, I'll need to do some reading.