LARGER LOADS, LIKE A/C UNITS CAN CAUSE A BRIEF “DIMMING” OF LIGHTS. MOST OFTEN THIS IS CAUSED BY AN EXCESSIVE LOAD ON THE SERVICE, RESULTING IN A VOLTAGE DROP. IT MAY BE REMEDIED BY SIMPLY INSTALLING A “HARD START” CAPACITOR ON YOUR A/C UNIT. HOWEVER, IN SOME CASES YOUR A/C MAY NEED SERVICING OR EVEN REPLACEMENT. OFTEN TIMES THESE PROBLEMS CAN EVEN BE CAUSED BY LOOSE CONNECTIONS IN YOUR ELECTRICAL SERVICE EQUIPMENT OR WIRING. IF THE CONDITION IS SEVERE, IT MAY REQUIRE AN UPGRADE TO YOUR SERVICE; IT SIMPLY MAY BE TOO SMALL FOR THE LOAD IT NOW SERVES.