BCDrums: I Have the older Daytime Red Taillight - Daytime Only Dinotte Taillight and the predacesor to the D6. The new D6 is on my upcomming purchase list. I like it when I look in my mirror and see people moving over at a good distance back because they see my light. Prior to purchasing a flashing taillight someone sideswiped me nocking me over onto a sandy shoulder. I was lucky and had no lasting physical injuries from this incident.