DCW180Z Cooler Warmer Box can be powered by 18v Lithium Batteries, 12v/24v Vehicle Power Socket or Mains power using the AC Adapter. Features of this 20ltr hot or cold Makita box includes 5 inside cooling temperature settings -18 degrees C to +10 degrees C and 2 inside warming temperature settings +55 degrees C and 60 degrees C. The box has an LED display giving a clear readout of the inside temperature and battery fuel gauge, built-in bottle opener, USB output port, carrying handle plus large caster wheels allowing the box to be easily moved around when fully loaded