I went on Cateye's website after reading your good reviews of the ld-1000. I quickly realized that I owned 2 of those last year. I bought the first one because it had soooo many LEDs. The first one worked great for a week or so. Then, it would switch from a strong blink, to a really dim blink. A few taps on the case would result in a strong blink again. A few blocks later it would be a dim blink. I exchanged it for another at my LBS and I had the same problem. I must sound like I abuse my lights, but I am really gentle with all my lights and careful to keep them dry as much as possible.