Asus Rog Swift PG278Q - power supply broken, will this one work...

[SouthEastBlue]

Sparing the long story, will a Delta power brick from a laptop with the following specs be safe to use on my Asus Rog Swift PG278Q?

Delta ADP-40PH
19v
2.1A
40W

The Rog Swift power brick is rated :

Asus ADP-90YD.B
19v
4.7A
90W

The lower powered laptop charger seems to be powering the screen fine for now browsing the web, but will it cause any damage being lesser spec? Whats the worse that could happen?

 

[SouthEastBlue]

Thanks for your reply/help.

I tried to reduce the power draw of the monitor as much as I can by reducing the brightness and turning off the flashy glowing red base.

It seems to be alright for now, and was just a stop gap until I get paid so hopefully holds out at least until Christmas is over!