This might be a good accessory for our flashlight/taillight. A new diffuser from Fenix (AD401):
http://www.fenixlight.com/viewnproduct.asp?id=50
Supposedly $5 on pre-order.
EDIT:
It will not fit the Ultrafire. The diffuser diameter is too small!
Last edited by lutz; 08-07-09 at 03:44 PM.