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Amps watts volts oh my!


lilouisianagal

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I am trying to figure out how to set up my controllers so I don't blow a fuse, but I'm not sure how to convert and figure it out.

I know each channel can handle 8 amps and each bank [side] can handle 15 amps total at a given time.

I'm using LED lights that are 9.6 watts per string.

But the conversion formula includes volts (voltage). How do I know what my voltage is? *confused*

HELP! Please.

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I know this isn't exactly the answer to the question you asked, but a Kill-A-Watt meter is just the thing you need to take all the guesswork out of balancing your loads. Until the first time I used one I had no idea what an indispensible gadget it truly is.

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lilouisianagal wrote:

I am trying to figure out how to set up my controllers so I don't blow a fuse, but I'm not sure how to convert and figure it out.

I know each channel can handle 8 amps and each bank [side] can handle 15 amps total at a given time.

I'm using LED lights that are 9.6 watts per string.

But the conversion formula includes volts (voltage). How do I know what my voltage is? *confused*

HELP! Please.

Power (in watts) = Voltage (in volts) times Current (in amperes)

Divide watts by 120V to get the Amps
So, 9.6/120=0.08A

And agree that getting a Kill-a-watt is a must. Just the plug the string in (or the entire series of strings for that channel) and it will tell you exactly how many amps it is using.

http://www.amazon.com/P3-International-P4400-Electricity-Monitor/dp/B00009MDBU

314Xry08unL._SL500_AA300_.jpg

About $5-10 more at local Lowes or Home Depot usually.
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Since you are using LED lights, you'll be hard pressed to blow any circuits or overload any controllers.

That said, do all of the above anyways ... use the QH sheet to compute power, enter in actuals from your killowatt, etc.

In my show, which has been mainly incand. I pretty much add LED(s) without big worries, since they use so little power ... never had a problem with overloading ... and many of circuits run two controllers each, because I load balanced everything and the loads are just not that high.

I use a TED5000 to monitor the energy usage in real time ... it helped identify a place in a sequence when too much power was being used. In fact, I could pretty much tell when certain songs were playing based on the power graph I was seeing.

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