Dimensions: L125 x W113 x H 300mm (L4.9 x W4.4 x H11.8in.). Immersion depth: approx. 280mm (11in.). On average 30W, power supply unit: 100 - 240 V / 50 - 60 Hz). For tanks from 200 to 1,200 litres (52 to 317USgal.).