picking the right power supply

A MINI spy camera that requires 120 Watts of POWER !!!

That can't be right ! a VHS Camcorder probably uses less than 12 Watts I would not be surprised if a "mini spy camera" used 120 milliwatts

you might consider a solar panel and rechargeable battery for under fifty dollars !

Yukio YANO

Yuki YANO,

Thanks for your reply. Let me type in exactly what I see on the product description sheet.

Supply voltage/consumed power: 6-12 v120W

So, this might be a misprint? There are other spelling mistakes in the product description...so maybe that should read , "120mW"?? The same product description sheet also describes a black and white model as using 90mW. (My camera is color)

The mini camera also came with an adapter that allows me to power it by a 9V battery. Could this help me determine if my power supply could work for this?

Remember, the power supply I found around the house is 1.26 Watts = .

14 Amps x 9 Volts.

I really appreciate the help!

Ya, A laptop, with all your goodies running... even with usb powered cameras, mouses, lights etc.. under a full load.... won't even rise above 90 Watts.

Your reading it wrong or there is a misprint. Try the 9 volt battery first and see what happens... That battery won't be able to supply much current.. much much less then 120 W's for sure.... so I'm sure you won't burn it out. Actually, your voltage is really what matters anyways, your device will try and pull the current it needs.. until it reaches the psu limit. If it can't pull enough current from the psu, then it won't turn on. In that case, get a bigger psu and try that. In fact, you could just hook it up to your car battery if it can handle

12v. Then take a amp gage, and measure how much it needs to run... vola, you now know what psu specs you need for current.

Anyways, long story short, don't use ac at that voltage unless you use a rectifier. then you can.

It could be either 120mW or just possibly 120mA.

Either way your power supply should work as it produces

Power = 1260mW = 1.26W Current = 140mA = 0.14A

Make sure the power supply is DC not AC output and that polarity is correct.

CWatters,

Thanks for your reply. I was looking over the package that the camera came in and discovered that the documentation inside the box contradicts what the outside of the box states(in Chinese).

120mW it must be.

For what it's worth, I have plugged the adapter into the camera and it seems to work fine. I only did that for 15 seconds or so...I didn't want to ruin the camera.

Anyway, your comment about polarity has me wondering...

I read about polarity here:

My power supply is Center Positive, but I can't find any information about polarity for my mini camera.

Is there some way to determine what the polarity for my camera is? Would this involve a multimeter? Or some similar device?

Thanks!

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