At my recent talk to the good folks at Cirencester Camera Club I was asked a few specific questions about my portable lighting set up, so I’ve put a few links below with the main gear I use. If this proves useful I’ll add a page to the site with other recommendations.
By far my favourite light. Only a little bigger than a speedlight, but with the power of a small studio head. The battery is amazing, I’ve never got close to running out of power, even in a full day of shooting.