Hi, I am replacing outdated bulbs with LEDs in a community conference site. The chandeliers are on dimmers. When I put in LED bulbs equal to 60 Watts and turned it all the way up there was no flicker. I turned them off and they went off completely. Do I need to install an LED dimmer switch? Everything seems to work OK now. Will there be trouble later? Would the chandelier react differently with 100 watt equivalent LEDs?