Portland Design Works Radbot 1000 Taillight : 1-Watt LED

Portland Design Works offers the power of an LED automobile taillight in a smaller package.

Includes Stayputnik quick release taillight mount fits up to a 31.8 seatpost and attaches without tools

1.0 watt Japanese LED: same LED used in car taillights

Features crescendo flash pattern

Run time is 50 hours

Two AAA Alkaline batteries included

Requires the on/off button to be depressed for 1.5 seconts to be turned on or off so the light doesn't unintentionally get turned on when stowed in a bag or satchel