... 3,300K3.Standards: IEC60061, IEC6063 , IEC60598, IEC62560, IEC60968 and IEC550154.Applications:1.Hotel , Conference & Meeting room,institution ... building2.theatre, stage and museum lighting, etc. Replacement for halogen lamps,incandescent bulbs3 ... aluminum plate check, power supply check and the finished products need to pass 48 hours aging test.2.Warranty: ...