12v Power from vehicle cigarette lighter

Is it safe to power a Fez Domino/Mini/Panda using a cars 12v power supply?

I’ve read that the cars 12v supply may sometime be higher, upto 24v if it’s being jump started, would that blow a Fez board up or would a cigarette lighter plug regulate it to only output 12v?

Any ideas welcome!

Found this product, input voltage 12v - 24v, outputs 5v through a USB socket.

Here’s the description :

"The single port USB charger for car cigar/cigarette lighter allows users to charge their USB devices, without the need to connect the device to a computer. This product is compatible with most devices, including mobiles phones, most MP3 players & satellite navigation products.

1000mA power is much higher than standard adapters can supply so works with nearly all USB power devices.

  • Input Voltage: DC 12-24V - Output Current: 1000mA (+/- 50mA) - Output Voltage: DC 5.0V"

Will the 5v output be sufficient to power Fez board + gps etc…???

I would suggest a usb cigarette plug.
No need to worry about power. Plug in, done.
The best is that they only cost a few dollar.