Kent's Bike Blog have published a review of a few bike lights from Planet Bike.
'The Blaze One-Watt is bright. Low beam is brighter than what is put out by its half-watt sibling. I've been happily commuting with two of the half-watt lights this winter. At 6:00 PM, I set off for my 18 mile commute home in the 48 degree rain. The new light uses the same mounting bracket as both the Beamer and the half-watt Blaze but the light itself is about a centimeter longer.
I played with the light on the commute home. This is a very nice light. I have good night vision, so I mostly ran it on low. Low beam doesn't seem much lower than high, but the difference is noticeable. The flash rate is rapid. I have mixed feelings about flashing lights, they help drivers notice you, but it's hard to gauge the location of a flashing light. Because of my mixed feelings and an appreciation for the value of redundancy, I'll probably stick to a dual light set-up, but the one-watt Blaze would really be all the headlight I'd need. Still, I think a Blaze as the main light and a slightly lower powered Planet Bike light, possibly set to flash, makes for a real nice commuting set-up.'
Read: One Watt Planet Bike Blaze (and some other lights) Reviewed - Kent's Bike Blog