An LED unit is provided with a plurality of vertically oriented LED panels each having a support surface supporting at least one LED. The LED panels may be rotatable about a vertical panel axis. The LED unit may further be provided with a frame that may support the LED panels and the LED panels may be...http://www.google.fr/patents/US7810968?utm_source=gb-gplus-shareBrevet US7810968 - LED unit for installation in a post-top luminaire
