HELP...... Laser Master 2 20W - what power supply?

Whilst I was assembling my laser, my daughter ‘helpfully’ tidied away the power supply adaptor - which would be great except she placed it in a box that already contained multiple power supply modules. :frowning:

Can someone please have a look at their own device and advise me how many Volts of DC Power is required? The box contains 12, 14 18 and 19V adaptors

12Volt 3Amp

Thanks Tom