Porch light covers are decorative luminaries that cover light bulbs lighting your front entrance. Some shells are more ornate and difficult to remove than others, but generally the removal simply requires a screwdriver. You also need to know where your switch is, so you can disable the fuse to prevent potential electrical accidents.
Ideas for remove porch light covers turn the power to the veranda light at the circuit breaker. It might seem enough to turn off the switch alone, but someone could hit it on, see you out there. Wipe the porch light lid with a dry cloth to remove any insects, spider webs or dirt that may get in your way while working.
Locate the screws that hold the porch light covers to the wall or ceiling. Make sure you have the appropriate screwdriver to remove them. Insert the screwdriver into the screw head and turn them to the left to loosen them. When you reach the last screw, hold the luminaire with one hand and unscrew the screw with the other so that the lid does not fall and break. Pull the cover from the wall or the ceiling. The bulb should remain on electrical components on the wall. If the light bulb comes with the lid, gently pull the cables out of the cover, and unscrew the wire hats to the free bulb.