... ; led dimmer:CE ,RoHS ,FCC certifications dimmer: OEM service offered LT-300 controller; LED controller, RGB controller 2. PRODUCT SPECIFICATIONSSpecification of ... for easy programmingWarranty:18 monthsTEMPERATURE RANGE:Ambient: -20°C to 40°C; Surface of Lamp: 60°C to 70°CHUMIDITYT ... the widely used DMX512/1990 signal to analog signal. LT-300 also has 34 different pre-programmed color pattern choices ...