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DC-DC 2V-5V to 5V 2A Step Up Boost Power Transformer Supply Voltage Converter Fixed Output High-Current for DIY Lithium Battery Description: 1 Input voltage:2 2 Output voltage:5V 3 Output current:2A(max) 4 PCB size:7*13mm five SMD 6 Conversion efficiency:95% Package Included: 1 x Step Up Boost Converter