While I am NO EXPERT on investments, I WILL tell you this:
JUST having a good product, or a good idea, or a good concept, will not GUARANTEE that you will be successful in the stock market. (I am not saying that it will not, either).
Look at AMD. For years, they were selling chips that were Intel compatabale, and ran faster and sold for less than the equavilent Intel chip, but their stock never sky rocketed!
I have a friend who is a career chef, and the one thing that he will not do, is invest in any company that has anything to do with food. Reason is, is that he doesn't want his professional opinion to cloud is investments. He might see a great new product, come out, and he says to himself, I have been waiting my entire career for someone to come out with this product, and invest in it, and the company not do well.
Or maybe the trend is to invest in companies a layer or two below the LED market. Invest in the company that supplies the tools to MAKE the LED's.
You are right, it is worth looking at, but just realise, that just because you say "This is the flashlight that I have been waiting for my entire life", does not mean that the company will be a stock market success.
Ironicly, a company like MAG might be the company to invest in.