Buy It Now Price is for 2 pcs Batteries Holdersfor 2 pcs AA size 1.5V batteries and make 3V output Characteristic Perfect power source for your 3V LEDs lampposts and signals, no resistors needed.LED lights and signals do not need much power, and 2 batteries may support them for long time. you may use one holder to support 5 to 10 parallel lampposts without resistors.Brand newPRODUCT DESCRIPTION Use these to Light your 3V LEDs, lampposts, signals, LED strips etc......