it can adsujting,and folding,fit for student,office 1.G4 20W,12V with adpater 220v 50hz2.Suitable using in office and reading room 3.Color:white black blue or other 4.Easy to folding study lamp(office lamp,table lamp)Suitable using in office and reading roomEnergy ConservationJC5004(20W,12V)Packing:1pcs in color box,20pcs in CTN,13/15KG,52*24.5*44CM halogen desk lamp