What vintage are these? Is the Enduro the predecessor of the Maxx / Maxx-D? What Mk is the Race? What's the weight of the lights? Lumens and current run times on full?
A bit of googling suggest these are circa 2007 and, possibly the end of my interest in them, Exposure didn't put the piggyback port on the back until later models (I already have a piggyback battery that I'd want to use with this). Correct?
Dyffers, you're right about the piggy back ports - it doesn't have one. I think these were the last before the Maxx-D models, but not the original Enduro/Race model as I had some of those before these.
I don't have figures for lumens or burn times to hand, other than they've very adequately served my needs for 24hr races and the BB200 over the years.