Lights

The unit will be fine - it's intelligently heat-sunk. My batterypack/charger packed up after 3 months of pretty minimal use. Their attitude was simply "screw you" you can buy another at full price. Which is a disgrace, but they know you aren't going to sue them in the states if you're from over here.

This is what worries me. I currently use two 10w halogens, I have two Li-ion batterys mounted which can run each light individually, or both with a tiny extension I carry. If I had both lights fail. I simply could'nt get home from most of the places I cycle, so I carry extra parts. I'd rather spend out and feel safe TBH.