I have been using this light and battery pack for ...

I have been using this light and battery pack for over 7 years. At first, they were great products, they were high quality and lasted a few years. Once I replaced the first ones I bought, I could tell they were not the same quality. I have purchased at least 4 battery packs in a couple of years. I know their prices are very competitive, but this doesn't mean they should use cheap manufacturing. I would recommend buying a higher quality system, even if you have to pay a little more, it pays off at the end!