Due to nature of this project it will be difficult if not near impossible to set up studio style lights on, location; being train stations, parks, the street and various other locations around London. Not to mention the chance of possible theft. I also feel that setting up lights would create an intimidating and 'posed' environment which I do not want.
While performing some test shoots previously, I found that using an on camera Speedlite gave harsh, over exposed and often too much or to little focused, not the style I want for this project. So upon doing some research into small portable lighting that I could use for this project I can across this -
While only a very basic form of light, prelimianry results look good. Using this miniature softbox fitted to my Speedlite should provide the type of lighting I want during this project, with compromising in mobility.