Well, my Ding light has finally turned up, some 14-15 months after I backed it on Kickstarter. They have had a few issues with initial batch quality, so hence the delays. The final product is a cracker.
Two forward beams, one of which is wide angle, with 3 main modes upto 750 lumen. They have beam cut off so are OK in traffic. In addition it has a 100 lumen downwards beam that lights the ground up beneath the bike. Shame I'm not commuting, but this will be a handy off road light. Mounts under the bars via the strap, or the included go-pro mount. There are numerous modes which include the 'down lighter' on or not, including a number of flash and pulse modes.
I'd backed it at about £45, but I think they are retailing for about £100. They come in a protective tin, and include charge cable, spare strap, go-pro mount, carry bag and instructions.
Couple of pictures