dimmer change

Hi. I have two dimmer switches and a fixed 2way switch in a 3 gang switch and would like to replace the two dimmers with the same fixed switch unit. These are Hamilton gridit two-way rocker modules to replace the Hamilton dimmers. As you can see in the images, the current signal switch to the...

Currently each room's switch is an elderly dimmer. The principle light fitting in the lounge has 5 lamps, each with 40 w. small golf balls. The dining room has a similar fitting with 3 lamps. I'm considering a change to LED both for the ultimate savings and convenience of less frequent need for...