Powering same LED strip from 2 drivers - diode?
I'm assuming you know the diodes go between the driver and the LEDs (not on the AC side).  

And not knowing the LEDs current draw, the 5A spec of the suggested diode might be OK.  Do you know the current draw?

Also, the diode presence will create a voltage drop - that gets worse with current (see spec sheet) so the LEDs might not operate normally (dimmer)