... out120mmWork frequency50-60HZViewing angle30°, 45°, 60°etc.CertificateCE, RoHSApplicationOffice, retail stores, supermarkets, schools, hospitals, factories, parks and other indoor ... places etc.Minimum order quantity50~100pcsPaymentT/T, Western Union, Paypal.Lead time3~5days for samples.7 ... connect the product, then turn on. 3) Don't touch the metal parts of the bulb, while power is on. ...