Heater core 3.5kw electric 600w 2x50mm connections. Electric heating coreh and-built in England. Made with quality components to last a lifetime. Technical specifications 12 Volt, 61 amp, 600 watt 2 x 2" connections (50mm) Quick heating Can be mounted both vertical and horisontal Secure PTC heating core Brushless 50.000 hour ball bearing fan. Over heating protection Sound level: 55 dB(A) Measurements: Width- 15cm Length- 16cm Height- 11.5cm Mounting instructions included Note! 600w may require a more powerful generator if this is mounted in an older vehicle!