I have delt with this company before and they are great. I get a lot of the peltier devices because I was doing a project to convert waste heat into lighting and cell phone charging for africa and haiti. Long story short if any of their products failed, which was my fault they still took them back no questions. Also they have good prices and since they are down the road its a great shop for anything from components to heat shrink. If you do not want to support big business then definitely go there. Also if you buy in bulk they give you a good break.