By Jean Mathys. Bathroom Lighting. Published at Thursday, March 01st, 2018 - 00:37:39 AM.
Vertical fixtures or sconces mounted on either side of the mirror are best for casting an even light across the face. But given the size and positioning of some vanity mirrors, sidelights can be impractical (mounting them directly to the mirror is always an option, but at greater planning and cost). Only then do I suggest a fixture for over the mirror. It should be placed 75 to 80 inches above the floor and, like all vanity lighting, contain at least 150 watts — ideally spread over a fixture that's at least 24 inches long so that the light will wash evenly over the hair and face.
Building codes are very strict about lights over tubs and whirlpools. There can be no open or hanging fixtures within 8 feet above the tub, nor for another 3 feet in front of it. Since most bathroom ceilings aren’t more than 8 feet tall, this generally precludes having open or hanging lights above tubs.
High-end hotels sometimes feature LED tape lighting under a vanity or a countertop edge for this purpose. In most of our higher-end work, we provide an electrical outlet behind the toilet for a bidet seat, and this is a perfect place to plug in one of these lights. Recently, several manufacturers have started offering LED lighting in the toilet seat for wayfinding.
To provide a range of lighting from dim to bright is why we prefer to use LED (or incandescent, if the client absolutely demands it) rather than fluorescent, as LEDs are much easier to dim. It’s better to have fixtures that can over-deliver lumens and be dimmed as needed.
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