I buy 4 and I am of the benefit and exterior and interior feasible thanks to the power source developed by the 50 W LED that lyre Contest!
Also very compact and only 10 kg, a really reliable quality product at the moment (they go out EVERY weekend!)
Please note this product is of good manufacture and costs a little expensive especially if you want four ..... Normally the price is € 1299 including all taxes and I play the best that I've found on the net is on c www.sonoprix.com
http://www.sonoprix.com/vente/f/index/view/id/manufacturer/v/10/?p=9
'll Go crazy!