Package List 25 x step up modules Characteristics -Color:As Shown Step Up Voltage Regulator Board Output current: 7MA Boost Module Maximum output current: 480mA Power Regulator Module Start-up voltage: 0 dc to dc converter. -Material:PCB, electronic components sfp module Pin pitch: 2 converter. - Note: The input voltage cannot be greater than the nominal voltage, otherwise the module will be burned out 3.7v to 5v boost converter. Typical conversion efficiency: 85% Boost Power Converter Output: Input 1-1.5V, output 5V 40-100MA; input 1 Step Up Voltage. Input voltage: 0 DC Volt Power Supply Module. Working frequency: 150KHZ regulator Output voltage: 5V Step Up Boost Power Converter -Size:1.10X1.05X0.75cm/0.43X0.41X0 Power Supply Regulator. - Special design and it is in fine craftsmanship. It is the best replacement for your old, broken one Power Modules. - Easy to connect terminal, female connector can provide stable connection buck boost converter. - A good substitute adjustable voltage regulator board for your broken or worn out one voltage regulator. - It is manufactured with professional technology to ensure the product can work for a long time v-bucks.Goods Informationbuck boost converter Features the PCB material, which has high durability, not easy to deform.buck converter Fine workmanship, ensures practicality.3.7v to 5v boost converter This step up converter is made of premium material, which can withstand long-lasting use