-Setting on the top of the car where the ceiling light is -Adopt high quality bulb/fluorescent tube/neon tube -Addong the function if changing magic colour of LED -Three switch: OFF,ON,TURN ON when the door is open. -Advanced design and the tube change easily -Take a frequency for controling.combining adjusta bkly making the voice control. -Helping the passenger for reading,increasing the car a charming colour. -Applies to 12V motor. -Light colour: Available for white,bule,red,and 7-colour. -Packing details: 40pcs/CTN G.W:21.5kgs MEANS:46.5*40*52cm