ITEM NAME:LM7809+LM7909 ±9V dual voltage regulator rectifier bridge power supply module â„–[ 100% Brand new and High quality Output Voltage: ±9V, Dual Voltage Input Voltage: DC 12~24V, positive and negative dual voltage AC 9~17V, positive and negative dual voltage Notice: Only when the input is positive and negative dual voltage, the output for dual voltage. Packing List: 1pcs x LM7809 + LM7909 ±9V Dual Voltage Power Supply Module.Find many great options and get the best deals for LM7809+LM7909 ±9V dual voltage regulator rectifier bridge power supply module â„–[ at the best online prices at shop2india!