oh...i'm realy sorry...i've searched but i must have deleted the lws file...i only have the object
but as far as i remember i olny used spotlights....three spotlights if i'm not wrong...
btw i forgot to post a quite new render wich i participated with at a realism contest...i didnt have time to add more detail and the scene looks a litle bit empty but i can say that was the intention can I ? :p