This video teaches the secrets of installing a light bulb in your own home. First turn on the light switch to check whether your old bulb still works, but its not working. Now turn off the light switch to start the replacement and remove the light cover. Remove the bulb by twisting in anti-clockwise direction carefully. Now install the new bulb and turn on the switch to check if it works and the lighting is good enough. Finally attach the light cover to finish.