Boo-Boo - Both the Herc and the Aries are 100% duty cycle (from Laserglow). The duty cycle is great for those that do not want to have the limitations of 60seconds on, and 10 seconds off. I love using the aries to point out many things in the night sky - even at twilight, it is brilliant in the sky ! All manufacturers have problems once in a while...I think that CNI has had the least, recently of any other manufacturer that I have seen. But - back on topic, here - What do you use your laser for - and how do you enjoy using it ?