what is the power source
1047953
It has an ac adapter. No batteries needed. Look into the hot wheels. Just got this and it works better, but you need a separate car. But they are cheap and aren't as finicky as this set. (Hot Wheels Team Hot Wheels Total Control Racing Stunt Park). Otherwise, the set you have works ok, just touchy with the track and cars and dust.
1813273
From what I have experienced, there is not "battery" on this product. So it has to be plugged to a power source.
2203555
No power source. The kit is to be used with a micro controller board like the Arduino UNO (shown in one of the pictures), I own an Uno, but I bought it to use with my Raspberry Pi and Beagle Bone Black. I am learning Python for the Linux platform, and this is pretty cool set of parts for a good price.
630042
It both charges and is power source. I think it works fine. No problems since purchase.
1172412
Sorry, don't understand this question. Extra power supply to what? My review was about the battery charger and it doesn't come with a power supply. You provide the power supply by plugging it in to an electrical outlet.
1704630
The battery is a backup in case of power interruption. From a practical viewpoint you need a low voltage power supply.
22414
Yes, it does need a power source and comes with the cord. Probably would not work for you. It is a nice little unit though.
1033697
The Power source is through the same cable as the signal for the Rotary motor. There is a small battery operated hand controller. It rotates either left or right with a press of a button. Very simple installation. Work's well.
1530417
The power source is a house current (electrical outlet) this device can be either run through your computer for recording purposes (software included) or connected to a receiver as it has cables for both. Great machine for digitalizing tapes or listening to them. Only problem I had was the Apple software you must work with to record to computer. But it does it's job although more settings would be nice.
1553035
It can be powered by either. Don't waste your money on this product though. Very poorly made and breaks easily.
1694654
There is no power source. It uses the pressure of the water supply. I followed the hookup directions that came with the pump, and it works great. Instead of the drip, drip, drip, the pump goes "ffftt, ffftt" occasionally.
114674
Yes. I just checked the owners manual on line and that is the power source for that unit.
678019
It uses a small, onboard battery for its power source. I believe it's a AAA battery - should say in the description.
2117296
I have no idea. It's a usb power source. I have used it to charge my iphone and my bike lights. It works really well. ;. I have used it to charge my iphone and my bike lights.
1588074
Long cord plugged into power source.. I use an extension cord to plug it into my garage's outlet.
1203403
The power source is battery.I think it is 9volts not sure but it is battery operated.
976954
Power comes from the supplied power cord. They are not super quiet but seem to be slightly less noisy than a regular fan