BIRD BARRIER BS-CP30 - BIRD BARRIER® BIRD-SHOCK® SMALL CHARGER, 120V, BLACK - THIS CHARGER POWERS UP TO 500 FEET OF TRACK. IT IS WEATHER-PROOF AND CAN BE MOUNTED OUTSIDE ? SO LONG AS THE PLUG ITSELF IS IN A WEATHER-PROOF HOUSING. INPUT VOLTAGE: 120 VAC OUTPUT VOLTAGE (MAX): 9KV +/- 10% OUTPUT PULSE WIDTH AT 500 OHMS: 100 US OUTPUT AT 500 OHMS: 2.4KV, 0.16J - EQUAL TO 43RG24