... JO-689-------Automatic Changing Odor FragranceTechnical Data:Power sourceSolar. Can use power source when working without sunlight:12 (+3 ... ,000 pcs/cm3 O3 ≤ 0.02 ppmApplication Automobile, home, office, computer around. Color Blue. GreenCertificates CE, Fcc, RoHS, ... two glasses of perfume, one car cigarette lighter power plug line, one household power socket transform.Testing:Certificates: CE, Fcc, ...