Published at Monday, July 23rd 2018, 06:35:33 AM by Linda Harrison. Bathroom Light. The shower or bath area is another critical place that needs to have the appropriate amount of light. Usually bathrooms come equipped with two main light switches, one for above the shower which may also power the vent fan and the other for the commode and vanity area. The bathroom lighting fixture above the shower area should be made brighter with a higher powered bulb in case the shower curtain is of a dark color. The person showering should also be able to see the floor clearly. In many instances people can slip and fall in the shower because they cannot make out the position of the friction strips or they failed to see the soap bar that fell. Shaving nicks can also occur in the shower if the lighting is poor. Shower lighting can be just as critical as your vanity lighting.