Author Topic: spot light  (Read 5904 times)

Offline holland lights

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Re: spot light
« Reply #15 on: February 05, 2012, »
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i was looking more at this i posted the wrong web site
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That is the same thing.

Offline grumpy2076

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Re: spot light
« Reply #16 on: February 06, 2012, »
im looking to controle each light with the controler and just us the mr16 to control the power on off, im thinking this is going to work but got some things to play with. i post update of if it works or fails lol
Hey, it's like that old goat says: Rule 11: It's all just a game, so let loose and have fun with it! I mean, a casualty or two along the way is no big deal, right?

Offline holland lights

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Re: spot light
« Reply #17 on: February 06, 2012, »
Yea i do not know what to tell you on doing that;since i have never done it.
One of two things could happen.\
1. The power mosfet could quit from the controllers  in the mr16.
2. The controller in the mr16 bulb could fry from the dimming up and down.

Not trying to be negative here, just saying what i know about electronics lol.

Offline Heinekenator

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Re: spot light
« Reply #18 on: February 06, 2012, »
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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. 


Hi Steve. Thats a great idea. Do you have any video showing the brightness of these? I have a relatively small area of white on the house that im looking to illuminate, and i think the aether might be overkill (not to mention over my budget).

Thanks.
-Greg

Offline grumpy2076

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Re: spot light
« Reply #19 on: February 06, 2012, »
i appretiat the help and thank you for your advice, im think im just going to mess around and try to figure something out lol whats the werst that can happen  <md..
Hey, it's like that old goat says: Rule 11: It's all just a game, so let loose and have fun with it! I mean, a casualty or two along the way is no big deal, right?

Offline holland lights

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Re: spot light
« Reply #20 on: February 06, 2012, »
O the worst that could happen, is the thing blow up. I have had leds blow up before. early learning experience, do not put 12 volts to a led that is 3 volts, the top of the led hit the ceiling lol.

Offline chrisatpsu

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Re: spot light
« Reply #21 on: February 06, 2012, »
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O the worst that could happen, is the thing blow up. I have had leds blow up before. early learning experience, do not put 12 volts to a led that is 3 volts, the top of the led hit the ceiling lol.
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Offline holland lights

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Re: spot light
« Reply #22 on: February 06, 2012, »
Here is a video of a led exploding.
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Moral of the post is be very careful while experimenting, i know myself electronics can become really dangerouse if the components are not used right.

Offline tbone321

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Re: spot light
« Reply #23 on: February 07, 2012, »
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In the description it mentions:
Quote
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.

this is not correct.  Although it is using AC, it is a simple halogen bulb and will work just fine with DC.  The MR16 is a DC device and is really not modifiable to work with AC.
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Offline grumpy2076

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Re: spot light
« Reply #24 on: February 07, 2012, »
mm well we will find out i got the rock light and ordered the bulb for it so wish me luck lol <md..
Hey, it's like that old goat says: Rule 11: It's all just a game, so let loose and have fun with it! I mean, a casualty or two along the way is no big deal, right?

Offline grumpy2076

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Re: spot light
« Reply #25 on: February 17, 2012, »
well got my rgb mr16, and put into my spot light rock and wow its so awsome hope to try to get pics asap still playing with it will see how it gose
Hey, it's like that old goat says: Rule 11: It's all just a game, so let loose and have fun with it! I mean, a casualty or two along the way is no big deal, right?

Offline grumpy2076

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Re: spot light
« Reply #26 on: February 18, 2012, »
here are a few pics, this is one light its a 3w rgb mr16
Hey, it's like that old goat says: Rule 11: It's all just a game, so let loose and have fun with it! I mean, a casualty or two along the way is no big deal, right?

Offline wbe12345

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Re: spot light
« Reply #27 on: February 18, 2012, »
Well there are a lot of opinions out there!

Let's look at the spec the bulb is rated at 35W (35  watts) OK.

The wall plug is 12 VAC (12 volts alternating current).

The MR-16 is a DC (direct current) device.

A light bulb (filament type) will operate on either AC or DC.
 
Acording to ohms law     P(power) = V (voltage)   x    I (amperes)

We have some given data power of the quartz halegeon bulb is 35W and the operating voltage is 12VAC.

So let's subsitute the given values into the formula     35w = 12 vac      x  I (amperes) 

Let's drop the units we get    35= 12 x I

From algebra in high school  we know that in the above fomula the equal sign means that either side of the equation must be equal.

What must we do to move the 12 to the left side of the equal sign.  Answer is divide both sides by 12.

Therfore the equation look like     35/12 = (12 xI)/12

The equation looks like this      35/12= I

Do the division leaves     2.91 = I   so the current needed is 2.91 amperes.

Can it work on a MR-16 ???????????? yes but the wiki says 2.5 amps max the FET can handle it but watch the overall max current in the wiki on the MR-16.

Wally
wbe12345
« Last Edit: February 18, 2012, by wbe12345 »

Offline grumpy2076

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Re: spot light
« Reply #28 on: February 18, 2012, »
these rgb light im using only uses .09 watts >.d9
Hey, it's like that old goat says: Rule 11: It's all just a game, so let loose and have fun with it! I mean, a casualty or two along the way is no big deal, right?

Offline grumpy2076

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Re: spot light
« Reply #29 on: February 23, 2012, »
what are you guys using for a power supply, tis is yhe next step for me testing went great now time to put every thing together
Hey, it's like that old goat says: Rule 11: It's all just a game, so let loose and have fun with it! I mean, a casualty or two along the way is no big deal, right?