How To : Replace a Lightbulb
Turn off the power source
Locate the power source and safely disconnect it from the lighting fixture
This is done to decrease your chances of harming yourself or others
Flipping/clicking a switch
Unplugging from a wall
Taking out the batteries
Unscrew the previous bulb
Grab the previous bulb tightly, close to the base.
Twist counter clockwise until out.
If too much resistance, wear gloves in case the bulb shatters.
Install new bulb
Insert the new bulb into the socket
Screw the bulb clockwise until resistance is apparent
Test the bulb by switching on the power a few times