Description: Product Name: Mini DC-DC Buck ModuleProduct size: 23.6mmx14.2mmx4mm(LxWxH)Input: 6V-23VOutput: 5V / 3A (Max)Conversion efficiency: 92% (Max)Switching frequency: 340KHZ (Max)Operating temperature: -40 ℃ - +85 ℃Load capacity: maximum output 3A, 1.5A long-distance runningScope: power bank, mobile phones, tablet and other USB 5V power supply equipmentPackage included:3 x 5V Mini DC-DC Buck Module