LED controller is compatible with LED lights which owns 3 channels(common anode). It has a wide range of input voltage and adopts PWM technology to achieve the control of the brightness and the colorful changing effects. Its competitive advantages are listed as below: (1)10 skip, gradual changing modes, Gray grade: 256 levels per RGB; (2)1-16 speed level for each mode, can be chosen separately; (3)0-32 brightness level for each mode, can be choose separately; (4)the current color depth of LED light can be stored with the function of pause; (5)auto load protection, auto default recovery; (6)the quantity of controller chips is set by dip switch; (7)select program&speed by key-press. LED controller can work with power amplifier to enlarge the power and reach the synchronous changing effects. It is easy to install and can be connected in groups. The typical applications of this product include: (1)building decoration: business spaces, airports, subway; (2)indoor decoration: lighting and back lighting for hospital, hotel, marketplace, square, dining-room, pub and etc; (3)AD solid word, sign and mark, signboard and billboard; (4)big area back lighting source.