Main technique parameter: Feature size( L ? B ? H)(mm):300 ? 90 ? 135 Electric voltage:36 ? Power: 250 ? Efficiency terrace are:3-16 CN, M( n?82%) Speed:23-28( Km/ h) Climb scope :12 degrees Voice:? 55( db) Do not need to maintain work time:2000( h) Be suitable to car type:16" 18" 20" 26" 22" 24"