I have used the Planet Bike Alias and really like it a lot-- it seems lighter than the NR Trail Rat. I also have used the Trail Rat, and it has been a fine, dependable light. I bought 2 Trail Rats so I have 2 batteries and 2 chargers-- somes in handy for long summer night rides. I commute on a few different bikes, hence the multiple lighting setups.

BUT-- When I have to commute on routes with a lotof car traffic I am basically invisible to cars-- my little 10-15 watt lights disappear in the field of car lights. A bright Xenon white blinkie or a decent expensive HID light seems to help one stand out in a field of car lights on city streets.

Light up the nght! Ride on--