Halfords Portable Powerpack 200

Brand new from the high-street giant, and brimming with features. There's a compressor, and an integral invertor - providing up to 300 watts of mains power - plus a couple of energy- frugal fluorescent tubes. Starting power isn't disclosed, but seems on a par with the Rescue Pac, Draper and Clarke. Add this to reverse polarity and automatic anti-arcing protection, and you have a clear Best Buy.