1. Easy to remove
2. Easy to charge
3. Bright as hell, illuminates the road without blinding oncoming traffic.

Is there anything reasonable here? Most of the 3-4 lamp Cree lights seem to cost $300+.

Cree XR-E + 8AA batteries

Cree XP-G XPGWHT-L1-0000-00G51 (data sheet)