Feature: 1. Small size, convinent for carrying and storing. 2. Sufficient voltage and steady current. 3. Widely-used, suitable for many kinds of electric appliances. 4. All the product will send after good package. 5. Easy to operate and very safe. Specification: We have here a very impressive product with countless of features that you will surely need! This module has a lot of excellent functions. 1.2A current limiting resistor, remove the resistance, the maximum input current can reach 2A. And IC have "over temperature conservation" function. It will turn off the power MOSFET automatically when the internal junction temperature is over 150 Degrees Celsius. The power MOSFET wake up when the junction emperature drops 30℃ under the OTP threshold temperature. It is small and easy to operate, of course, it's safe. Do not hesitate to ask us for our recommendation to ensure the best possible feature and function that will work out for you! Features: Small size, convinent for carrying and storing. Sufficient voltage and steady current. Easy to operate and very safe. Good in quality but inexpensive. All the product will send after good package. Widely-used, suitable for many kinds of electric appliances. Specifications: Output 5V Input voltage: 3-6V, output 12+-0.6V Maximum output current: 1.2A Start voltage: 2.8V, output current: 50mA Input: 3V 1A, output: 12V 220ma Input: 3.3V 1A, output: 12V 250mA Input: 3.7V 1A, output: 12V 280mA Input: 4.5V 1A, output: 12V 340mA Input: 5V 1A, output: 12V 370mA Input: 6V 1A, output: 12V 450mA Item size: 20.5 * 10.2 * 5.6mm / 0.8 * 0.4 * 0.2in Package size: 20.5 * 10.2 * 5.6mm / 0.8 * 0.4 * 0.2in Item weight: 1.4g / 0.05oz Package weight: 5g / 0.18oz Notice: 1: Input voltage can not be greater than the maximum input range. 2: Output power can not be greater than the maximum load for a long time. 3: Input power must be greater than the output power, because the power consumption of the module itself. Package lists: 1 * Boost conversion module Package List: s: 1 * Boost conversion module