spot light

[grumpy2076]

Im thinking of using these with the mr16 controler, is there any resson i cant, they are 35 watts each but cant find out how much amps they use.
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[Steve Gase]

In the description it mentions:

Powered by a low-voltage Malibu transformer for long-lasting lighting

This is a 12V AC (not DC!) power source.   

This will not work with a MR16 which uses DC voltage -- modifiable, but usually 12V DC.

[grumpy2076]

MMM thanks steve i almost made a big mistake lol now to plane B, wait whats plan B 

[Rogelio]

If it is a 12 volt halogen bulb, why wouldn't it work on 12 VDC??  As long as there is not a transformer in it.  I know the coiled filiment may add a little reactance but you could always 'dim' it a little if needed. 
35 watt @ 12 volt would be about 3 amps   35/12
Am I missing something?
Roy

[Steve Gase]

If you are looking for spot/floods you can use 110v incandescent, LED, etc. with an LE (Lynx Express) controller.

If you are going with 12v MR16, you can create  floods out of 12v parts... there are products for sale, like rainbows.  In my case, I took a $5 home depot halogen work light, tossed asside it's guts, and replaced them with 10 5050 RGB nodes  (30 color changing LEDs altogether).  With this you can use a MR16 with 3 of its 16 channels to control this... but you can choose any color throughout your song.  Cost for the nodes... about $5 more. 

And another choice -- and my favorite for brightness is the AetherII.  This DOES use 12V AC, and it provides a powerful RGB light.  When the coops open for this, I plan to get a few more.

[holland lights]

A incadescent light bulb will work on ac or dc voltage.

[Steve Gase]

A incadescent light bulb will work on ac or dc voltage.

hadn't tried it.  good to know.  are there any gotchas? 

(i figured with mentions throughout the forums of rectifiers, bridges, and stuff that I have no idea what purpose they serve... that it was better to use AC with products designed with AC in mind.)

[holland lights]

A rectifier turns ac to dc voltage. A led can only run on dc current; and also a led is a one way direction for current. Ac current alternates. With incas all that needs to be done is heat up the filament. So it does not matter as long as it causes a short across the filament and it heats up causing light.

Here is a link to a interactive diagram on pbs.com which might explain incas better.
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[holland lights]

And you will need to make sure the mr16 is not overloaded on that channel with that 35 watt bulb.

Watts/volts=amps

35watts/12 volts =2.91666 amps  That is almost 3 amps of current on one channel.

[chrisatpsu]

from the manual...

Do not attempt to control more than 2.5 amps per channel from the MR16 controller. This is about 15 of the MR16s I am using per channel. I also recommend you keep the total controller current under 35 amps if possible.

[dmaccole]

Grumpy:

If you really want the rock facade, you can probably buy a smaller MR-16 bulb and take out the existing one and replace it.

\dmc

[holland lights]

yea a mr16 led is what is needed. That halogen will just pull way to much power for a mr16 channel to handle.

[grumpy2076]

i was thinking about this bulb
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[holland lights]

i was thinking about this bulb
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Wow that bulb is 50.00 dollars a piece. It would not work with a mr16 as individually controlled colors. That particular bulb has a built in circuitry.

Here you can get individual colors of mr16's at a resonable price.
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The mr16 controller is not capable of controlling rgb like in the pixxelnet setup.  Each channel of the mr16 would be a color. So channel 1 is red, 2 is green, 3 is blue. Only able to do 5 sets of the 3 colors;and channel 16 left over.

[grumpy2076]

i was looking more at this i posted the wrong web site
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