Bests & Worsts Reviews from Amazon

I have purchased 3 of these in the past 4 years. I use it as a daily carry light with very light duty. I work in an office. I am not saying I have never dropped it but with daily use it should not break in a year or under. Each have had the same issue which I can say is not from any impact from dropping it (I worked in a test lab for products like this). The button on the light itself stops functioning (all 3 units). It would work intermittently or cause flashing. If i actually got the light to stay on it would flicker when I moved the light slightly or turn off completely. I am an electrical engineer and I attempted to trouble shoot the light and I could not get it to function properly. I purchased the upgraded "Tactical" version of this light too since i thought it would be more durable. I spent approximately 50 dollars on and it had the same issue less than 3 months of use!!! I am very disappointed in this product's durability. This is one of the top flashlight companies and they cannot create a dependable product to carry everyday. I gave it 2 stars because I really do like the light when it functions. It is very bright and comfortable to keep in your pocket. I would use it almost everyday for one thing or another. I just wish it was durable.