florescent or regular bulbs?
its not abnormal for them to dim a little when you turn them on
when they start getting hot, smoking or making noise then they are possibly on their way out as far as some stuff I have a 4' grinder from HF that I use for everything the switch started sticking a little but I have a diamond blade I use for tile that is $30. twice as much as the grinder LOL
been going strong for 8 years
I'm not prejudice, I hate everyone