Probably the same supply. You can check the output with a voltmeter and make sure it does not going above 31v.
Also, check out the Sinpro SPU130-109. That's the unit we OEM and you may be able to find it in distribution - cheap!
You'll need to cut off the connector and graft on the 2.1/5.5mm job that's on the 24v supply.
The unit responds well to better power. Enjoy!