do you have to power them or can you leave them un powered?
1433010
Powered USB Risers have to be powered in order to work. There is no power transferred over the USB cable.
1433011
To the best of my knowledge, powered USB riser will not work without being powered. Although I have not tested it myself.
2031032
When they come all you do is place them around, they don't need anything. When they turn pink you just plug them in for about 12 hours and they reset to gray. They don't need to be plugged in. You just monitor the little window for them to turn pink. You do have to use a surge protector on the floor to plug them in as they are to heavy for a wall outlet. That may be the only draw back
1573553
No they can run off the head unit but if you amp them they can handle the additional power.
297040
They don't require electricity--unless you want to run the fan. They do require a battery to run the thermostat and electronic ignition. I am "off grid" and haven't used the fan. I'm heating a 400 sq ft space and haven't felt the need to use the fan. The low setting is all I've ever used. Having the thermostat has been very helpful, as it turns the heater on and off and keeps the space from overheating.
674141
You can leave the power cord connected to the speakers, but i recommend unplugging them from the power source after use. Especially for the price, you don't want them to mess up on you. But this is a great buy and with great customer service as well.
1404823
No. You would need a received or amp to power them. You can get a cheap one for about 40$.
1939895
Yes you can power the system by battery. Just be sure to use fresh batteries when installing them. The unit will have a visual and audible warning when the batteries are getting low to warn you to replace them.
42402
I don't know the answer to this, because I haven't used it that way, but I believe it WILL power the drive and they would stay on constantly.
192329
Yes they can if you want them to. That is the way I generally leave mine when not in use.
40708
You have to power them on at least the way mine are wired. They are really good though I have 2 of them and my kids love them! You can watch the same thing on both screens with one disk or you can watch 2 seperate things at a time if you have 2 of them.
753397
The lights will turn on and off automatically by themselves. The only way you could turn them off manualy would be to cut the power to them. So you would need them on a switch of some kind. If they were on a switch, to turn them on manually you would need, first of all darkness and to have them turned off -- no power to them. At that point -- darkness and no power -- if you turned the power to them on, the lights should light up. If you did not interrupt the power supply before daylight, they should turn off automatically. I hope I answered your question. There is no off/on switch on the lights themselves -- it is automatic operation.
655857
It will power them but it will probably overheat. I would go with a bigger unit than this.
813462
Scott, you will need access to a wall outlet for these speakers. There is no way to power them without the wall plug.
693523
You could leave them on but i dont cuz they heat up when left on for a long time.
2159679
No, while they may go into a sleep mode I've always found them to be responsive even after the haven't been accessed for a long time. Have never had one power down when using it.
1933268
You just screw them in the outlets. Problem is, if you don't have a switch to turn it off, it will be on 24/7
421588
Ditto the 11/30/2014 comment, no need to leave them on once they are charged; I usually remove them once I see they're charged.