Power @ 9.6v DC: 0.4 watt minimum

Buy Line 6 DC1 Power Supply for Pedals 98030004304 at www.musicianscart.com Power Supply for Pedals,Connect a Line 6 DC-1 power supply and youll never need a 9 volt battery again! It is also compatible with most popular 9 volt DC stomp boxes. Using the power supply will disconnect the battery,Technical Info Center negative,Supply voltage: 6v DC minimum, 9.6v DC nominal, 16v DC maximum,Supply current @ 9.6 VDC: 40mA DC minimum, 60mA DC nominal, 100mA DC maximum,Power @ 9.6v DC: 0.4 watt minimum, 0.6 watt nominal, 1 watt maximum.