... Water-proof,Anti-UV,Anti-corrosion;Driver with strict & long time test before application; LED chip with color temperature, CRI, lumen ... , label, packing etc. All with signature of the responsible.Driver Certificates and Patent in Germany, USA,Australia, Taiwan and Japan ... ONLLA!1.Quality Control1).Light efficiency:110lm LED chip,in housing about 80lm/w2).Driver Efficiency >90% in reality3).CRI>82Ra, ...