An apparatus and method for reducing lumen depreciation caused by other than lamp lumen depreciation. In one aspect, manufacturing and assembly of the fixture uses clean-room light techniques. In another aspect of the invention, materials that have a propensity to outgas are shielded from direct exposure...http://www.google.fr/patents/US8002431?utm_source=gb-gplus-shareBrevet US8002431 - Apparatus and method for eliminating outgassing of sports lighting fixtures
Apparatus and method for eliminating outgassing of sports lighting fixtures
