no chemistry information sheet provided a pity, but value for money top! enjoys taking a small plastic pieces that guides cables ds decision ... it takes a little tps to understand what needs to get to the bottom of the socket while bringing the cables with c .... very delicate Me, jOperation a metal wire (paper clip) to help push the small room at the same tps that the cables Once at the bottom, all cables must be perfectly aligned with the brass bars pressure before the clamp anyway that price, it's worth it to do tests before qqlqs
