45cm x 11cm Pink Car Music Rhythm Lamp Led Sound Control Flashing Dimension: Approx 45CM x 11CM Major features: product can continuously work for more than 4000 hours Sheet thickness is only 0.35mm, it is very space saving. Low power consumption: only 1mW per spare centimeters. Controler: main interface of sound control, one side connected with the led panel, the other side connected with the cigartte lighter charger A Switch of power on or off, and another button to select how the sensitive of the effect.