I put low voltage light on incandescent dimmer,if something going to happen with it. It looks to be work fine. Or I should change to magnetic dimmer.

You should be using something like this Magnetic Low-Voltage Dimmer Switch White - Lutron MALV-600H-WH What kind of bulb is in your light?

Mr 16 and I'm using diva dimmers

FWIW I used a low voltage halogen fixture with a regular dimmer for years and had no issues. It was a higher end 1000w dimmer.