5mm LED 16 dot matrix module Aluminium alloy frame Build in power switch ( 5v 4A DC) One- lines integerated display QUICK SPECIFICATION 5mm LED Display Aluminium alloy frame Build in power switch ( 5v 4A DC) One- lines integerated display
5mm LED 16 dot matrix module Aluminium alloy frame Build in power switch ( 5v 4A DC) One- lines integerated display
