Cateye's Loop lights are the next evolutionary step after the LD100. The Loop Light is shaped to fit on your handlebars or seatpost, and is quickly attached by hooking the stretch cord around the bar and back onto itself. A simple push on the front of the light turns it on or switches between flash and constant modes.
The Loop is sold in "Try Me" Mode to allow someone to turn on the light but have it automatically turn off after 30 seconds. From the OFF position, push and HOLD ON for 10 seconds until the LED flashes rapidly. "Try Me" Mode is now deactivated.