ITEM NAME:DC 12V 24V to DC 200-450V 70W high voltage boost converter step up power supp!e Desrcription: this is a DC convert with a huge output voltage of DC 450V. this module is amazing, when the input voltage is not stable, the output will be stable. this is a non-isolated converter. Parameter: Input: DC 9-24V lowest starting voltage: 8.4V Output:adjustable DC 220V-450V (MAX 450V the output voltage is stable even the input voltage is changing) Power: 40W continuously working, it can reach 70W occational working.Input voltage is lowered, the output power will drop, the input voltage increases, the output power increases, but does not affect the output voltage Size: 85*50*28MM Undervoltage protection: yes. when the input is less than 7.6V, the voltage will not be boosting Reverse connection protection: yes Indicator: the led will be on when the charging is finished Charging time: to charge 1000UF capacitance to 450V, it will take about 5 seconds Notice: when the power is big, the assurance may burn, you need to change to get the module back to work. Recommand power supply for the converter: DC 12V lead-acid battery or 3/4-series of 18650 batteries, which can provide a current over 7A. Purpose: magnetizing charging capacitor DC power supply equipment, test fixture, the product pressure test tubes low-voltage DC power supply, glow tube power, and other purposes Note: 1. The booster plate using low end limiting mode, that is, the low pressure side of the current restrictions, especially for charging the capacitor, we should all know the capacitor charging voltage is zero before time, direct charge, (in this case equivalent to short-circuit state) Any flow is not enough, easy to burn booster. This version can directly access the following 1000UF capacitor charging, 1000UF or more, preferably a series 5W, 10 European cement resistance about limiting it. 2. Not suitable for other big power electrical power supply, due to the current limit, output overload of work when the.This is a non-isolated converter.