The two brackets are powered on, but the middle is rarely powered on: 10W Voltage: DC12-14V Current: 800mA±5% Serial and parallel circuit: 4 sequence and three parallel Size: 20*30mm (0*1) Light-emitting floor size: 12*12mm (0*0) Crystal size: 35*35mil Number of crystals: 12pcs Crystal name: Epistar chip Lumens: 1200LM Copper substrate thickness: 1 (0) Thermal conductivity of copper substrate: 4/(m·K) Application place: Flood light Conditions of use: radiator required Chip temperature would not exceed 65℃20WPower: 20W Voltage: DC30-32V Current: 600mA±5% Serial and parallel circuit: 10 series and about a parallel Size: 57*53mm (2*2) Light-emitting floor size: 25*25mm (0*0) Crystal size: 35*35mil Number of crystals: 20pcs Crystal name: Epistar chip Lumens: 2400LM Copper substrate thickness: 1 (0) Thermal conductivity of copper substrate: 4/(m·K) Application place: Flood gentle Conditions of use: radiator required Chip temperature doesn't exceed 65℃30WPower: 30W Voltage: DC30-32V Current: 900mA±5% Serial and parallel circuit: 10 collection and three parallel Size: 57*53mm (2*2) Light-emitting surface size: 25*25mm (0*0) Crystal size: 35*35mil Number of crystals: 30pcs Crystal name: Epistar chip Lumens: 3600LM Copper substrate thickness: 1 (0) Thermal conductivity of copper substrate: 4/(m·K) Application place: Flood gentle Conditions of use: radiator required Chip temperature would not exceed 65℃50WPower: 50W Voltage: DC30-32V Current: 1500mA±5% Serial and parallel circuit: 10 collection and five parallel Size: 57*53mm (2*2) Light-emitting surface size: 25*25mm (0*0) Crystal size: 35*35mil Number of crystals: 50pcs Crystal name: Epistar chip Lumens: 6000LM Copper substrate thickness: 1 (0) Thermal conductivity of copper substrate: 4/(m·K) Application place: Flood mild Conditions of use: radiator required Chip temperature does not exceed 65℃100WPower: 100W Voltage: DC30-32V Current: 3000mA±5% Serial and parallel circuit: 10 sequence and 10 parallel Size: 57*53mm (2*2) Light-emitting surface size: 25*25mm (0*0) Crystal size: 35*35mil Number of crystals: 100pcs Crystal name: Epistar chip Lumens: 12000LM Copper substrate thickness: 1 (0) Thermal conductivity of copper substrate: 4/(m·K) Application place: Flood mild Conditions of use: radiator required Chip temperature does not exceed 65℃