Thanks for making such a wonderful forum. Although I can read Chinese and I am a Chinese, but I usually type in English instead, as I didn't learn the way to type in Chinese properly via a keyboard lol.
Anyway, 請各位多多指教 (I have slowly written it by using the IME write pad lol). I am really interested in the chips and LED used in those small flashlight and want to DIY some small flashlight devices on my own.
