Using the NI USB-6009 to generate a 12VDC output and 300mA output current

Hi,

I am using the NI-USB-6009 as my power source for a 12VDC solenoid valve with current drive of 300mA. Originally I used a non-inverting Op-amp circuit and inverting Op-Amp circuit to get the + 12V and -12V output but I could not get the current I required. Should I use a transistor??

Please find pictures attached. Any input would be appreciated.

Thanks,

Adam