... Warranty: 3 years 30-200w High Power LED High Bay Lights for factory, warehouse, stadium.45 / 90 / 120 degree ... silverCertificates: CE, RoHS Pictures of shades: Applications:LED high bay lights apply to buildings, factory, warehouse, supermarket, sculpture, stadiums, ... instability because of no using ballast (Using ballast create generation grid and noise pollution which make the light instability), ...