| Karl in the end you have proven more advanced than me in skils and knowledge. No I haven't and do not intend to do, due to time constrains. Well as long as we all share information then we all learn together :) I have about 20, 3W units which like you, have kept me from putting together yet :/ | BTW flashlight grade/intentded buck/boost converter assemblies are now available for sale from on-line shops like Litemania, SandwichShoppe, Deal-Extreme and Kai-Domain. Do not know if they do from major electronic components stores. there you go, that's not something I knew :) | Hell tha way things are going/developing we will have commercial LED studio lighting soon... I believe they're already available for cinematographic work! Be a while before we can afford similar outfits though ;) http://www.cineled.com/ man would I like one like on their front page! karl
