Product Description Product LED Remote Controller Model SR-2819S-CCT (R2) Output RF Signal Voltage 4.5V (3xAAA battery) Frequency 434MHz/869.5MHz/916.5MHz Control Zone 4 Zone Color Controller CCT Compatible Controllers (Sold Separately) SR-1009EA-5C (R-25.5A)SR-1009FA3 (R-1.6A)SR-1009FA7 (R-3A)SR-1009EATYWI-5C (R-8A)SR-1009TYWI-5C (R-4A) Color Black Operating temperature 0-40° C Relative humidity 8% to 80% IP Rated IP20 Dimensions 120 x 55 x 17mm (4.7 x 2.1 x 0.66in) Features: LED remote controller for CCT color temperature lighting fixtures Operates on RF signal with frequency options of 434MHz, 869.5MHz, or 916.5MHz Requires 3 AAA batteries with 4.5V voltage for power 4-zone control capability and functions as a dimmer for the lighting fixtures Black in color with operating temperature range of 0-40°C and relative humidity range of 8% to 80% IP20 rating protects against solid objects >12mm in size, but no protection against water Dimensions are 120 x 55 x 17mm (4.7 x 2.1 x 0.66in), making it compact and easy to handle Allows users to adjust color temperature for desired ambiance and lighting effect.