... controller. 3 can save 9 message,250 character 7*40 led car window sign We promise:1) Provide free sample for ... problem during the warranty, free replacement&maintainance. Features:Material: 7*40dots SMD leds, plastic casingSize:30*5*1cmPower: DC12V±10 ... %Display color: blue, red, green, white, amberOperating electricity: ≤7.0WControl mode: IR remote controllerDisplay order: from Right to leftFrame ...