The Bosch Corp. manufactures home appliances including dishwashers, washers and dryers, refrigerators and ovens. Bosch ovens are available in single, double or combination sets and can be purchased online or in department and appliance stores. Almost all Bosch ovens have a light bulb that will illuminate the inside. Replacing the light bulb is a simple task but only should be done when the oven is turned off, unplugged and cool.
Find the light at the top of the interior and unscrew the cover by turning it counterclockwise.
Remove the light bulb and use a guide to purchase a new light bulb. These reference guides are available at most hardware, home repair and appliance stores.
Gently hold the new light with a cloth to screw it into the outlet in a clockwise direction.
Replace the glass cover and tighten gently.
Restore power to the oven.