... ,21W,35WCertificatons : Have got CE-LVD ,CE-EMC , RoHS , SAA,c-tick and ISO9001 CertificatonsSteps to install1. Turn off power supply2 ... holder socket, then turn the T5 adaptor in the same way as installing a T5 lamp5. Turn on power supply T5 ... fixture for Euro ,pass CE-LVD ,CE-EMC , RoHS , SAA,C-tick