Pick to light system tseem hu ua PTL system, uas yog ib qho kev txiav txim xaiv kev daws teeb meem rau warehouses thiab logistic faib chaw.PTL system siv lub teeb thiab LEDs ntawm racks lossis racks los qhia qhov chaw xaiv thiab qhia cov neeg xaiv los ntawm lawv txoj haujlwm.