Keep the total dissipation below the Fet limits and you should have no trouble... The only real concern is the Vgth of the mosfet... which will usually allow 100+ mA @ 3Vgs which would be my worst case assumption. Based on the "Assumption" that you are using a "regular" Arduino and not one of the 3V3 variants... Then I would be REAL concerned that the Vgth be less than 3 volts... 2V - 2V5 being in the OK range.
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