... ; led dimmer:CE ,RoHS ,FCC certifications dimmer: OEM service offered LT-300 controller; LED controller, RGB controller 2. PRODUCT SPECIFICATIONSSpecification of ... the widely used DMX512/1990 signal to analog signal. LT-300 also has 34 different pre-programmed color pattern choices ... needs of general controlling power, but can be connected to LT-390 to have unlimited expansion power, and can control ...