Relatively unknown brand of professional studio strobes from the 80's/90's made in the UK by a company (System) I believe was originally setup by an ex-Bowens employee. Build quality is solid & mostly metal. I have another 2 of these which I'll probably keep, but I'm always open to offers as I don't have a studio so they don't get used very often.The kit consists of the following. 1 x 900 Ws flash head. 1 x 600 Ws flash head. 2 x Mains power leads. 2 x Pc sync leads.