Does old videocards support Lumen?

I developed the game on UE 2.7 and ported it to version 5.
After porting I enable Lumen in project settings. This is great technology!
But. If I want support old video cards for my game (like a GeForce 750Ti), should I turn off Lumen in Project settings?
And what should I choose for reflection and global illumination?

It should work but it may cause a lot of performance issues. You may want to downgrade the graphics a touch for your game to run at your target FPS.