Hi Greg, good question. Evakool have a few different ranges of portable fridges, some that will operate on either DC 12/24 Volts as well as AC 240 Volts mains power. Then some of the Evakool ranges have just 12/24 Volt DC plugs - in this case, you can still run the fridge from 240 Volts mains power, you would just need to use a Power Adaptor which converts 240V down to 12V to run your fridge. This kind of adaptor is popular for when 240 Volt AC mains power is available and you want to run any 12 / 24 Volt DC appliance.
Below is the current (as at Sept. 2017) breakdown of the Evakool Portable Fridge ranges in terms the built-in voltage operation:
- Evakool Fibreglass Fridge Range:  12/24 Volt built-in only. Need an adaptor to run fridge from 240 Volts power source (note an Evakool light duty adaptor is included free when a Fibreglass model is purchased from My Generator)
- Evakool Fridgemate Range:  12/24 Volt built-in only. Need an adaptor to run fridge from 240 Volts power source (note an Evakool light duty adaptor is included free when a Fridgemate model is purchased from My Generator)
- Evakool TMX Travelmate Fridge Range:  12/24 and 240 Volt built in.
- Evakool TMX TMDZ Travelmate Fridge Range:  12/24 and 240 Volt built in.
- Evakool Glacier Fridge Range:  12/24 and 240 Volt built in.
It is recommended you double check the specifications on the product page for each fridge model to get the most up to date product spec information. Many Thanks.