Vevor 300W 3 axis engraver installing a 10w laser - - - weak power

I have a brand new Vevor 300W engraver and am installing a laser from the Vevor A7 engraver. It works super on the A-7 but am getting very low power on the 300W. Lights go on and it seems to accept most commands from Lightburn. It cannot cut thru 3mm basswood in 10 passes at 100% and 300 mm/min setting. This same laser and setting cuts thru in 1 pass. My test show it is at about 5-7% power