Address your power supply (most likely the) problem first.
those cheapo power supply unit usually cheap out by using a minimum output filter capacitor, say 22uF or so. The goal is solely for their max profit. The fix is to add a 470uF 6v good electrolytic capacitor on its output side. (BTW, a good capacitor costs approx. 30% of the price you wer paying for that power supply unit.)
Must use thick (20 AWG recommended) and short (no longer than 10 cm) power supply wires in between the power supply unit and the Omega 2+ module. The connectors would preferably soldered, not using the filmsy DuPont connectors.