Buy a fridge/freezer like this, I don’t think u will be disappointed, as you will likely be with a cheap cool box, which is why I’m posting this reviewI find this 12v24v230v fridge works on all power options, cools to 0 degrees in 35 mins, turns on and off as required to keep set temp, it needs constant power to stay cold although unplug for half an hour and it will be ok with the food and drinks etcI find it is almost silent and perfect even for a light sleeper to sleep with it running a few inches from your head, the display can be a bit bright when it’s dark but a tea towel over the display sorts out the light, it also has an led light built in which is useful which cannot be turned offAt 22 litres is a bit small for all week and insulation not the best, but cool efficiency is so good it doesn’t really matter as long as keep plugged in26 or 31 litres I think would suit me better, I leave it plugged in a truck 24 hours a day with no flat battery, the battery saver I had to adjust to the m setting instead of h. Which is adjusted by unlocking the display, press and hold the setting or gear symbol, the h will flash then press to select H,M or LIt will keep fridge stuff nice and cold with ambient temp of 35 degrees, I find set temp at minus 1 is nice and cold for food and drinks and will not freeze drinks even if there’s a bit of ice in themit will keep frozen stuff too with minus 20 and froze solid a small bottle of water in under 2 hours as I wanted to have a nice cold drink of water set at minus 20 So keeping ice cream in it won’t be a problemFor £250 it’s reasonable value for moneyMy only real dislikes is the cigarette lighter plug which I plan on changing as I find it does not stay plugged in while in my multi way socket in car, direct in to car is fine, and the lid only closes shut with no catch to lock it shut I think it’s held shut with magnetsThe ice cube tray could be useful but I don’t like the ice cube trayU can keep chilled or frozen in this fridge/freeze