the lamp size: 582x205x64mm ; 882x205x64mm ; 1182x205x64mm ; watt:T5 2x14W ; T5 2x21W; T5 2x28W ; material: aluminum / poly piece ; 2 pcs inductance ballest ,guarantee time 1 year packing:60x23x7cm ; 90x23x7cm ; 120x23x7cm