This 21 litre Waeco coolbox is the most reliable 12v/24v fridge we have ever sold. It also runs on 240v mains too.
The temperature range is very impressive with a cooling mode: 1°C to 15°C (up to 30°C below the ambient temperature) and a heating mode: 50°C to 65°C .
It is also large enough to fit 2 litre bottles standing upright.
For more information visit:
http://www.roadking.co.uk/coolboxes-12v-24v/waeco-tc-21-tropicool-coolbox.html