Coves are architectural luminaires that direct light upward to the ceding and use the ceiling as a reflector to distribute light indirectly throughout the room. Consider coves for rooms with high ceilings, including vaulted or cathedral ceilings, and rooms where the ceiling height abruptly changes. Use coves to emphasize decorative ceilings. To prevent hot spots or excessive brightness on the ceiling, place the top of the cove at least 18 inches from the ceiling; position the base of the cove at least 6 feet, 8 inches above the floor. For kitchens without soffit enclosures above the upper wall cabinets, simple fluorescent lamp holders can be mounted on top of the cabinets and concealed from direct view with a trim board. This provides ambient lighting for the kitchen and it can be supplemented with under-cabinet luminaires or other task lighting. To reduce glare, the cove shielding board should hide the lamp from the eye of the resident while allowing the lamps to light the ceiling directly.
There are a number of cove light applications for commercial and industrial applications including retail, hotels and other facilities in the hospitality industry, corporate facilities, and many other uses. There are a few ways to install cove lighting. The most common luminaires used in cove lighting are the T5 and T8 fluorescent bulb. Also, some consumers use LED lamps, mounted on aluminum profiles in order to dissipate the extra heat. It is common to install dimmers, to change the mood in the space with warm white, daylight, or even using different colors. Many different effects can be achieved by using different cove styles: in the center of the ceiling, curvilinear or round coves, vertical coves and other shapes. Lighting designers recommend certain parameters when you want to install your cove lighting. Cove fixtures need to be at least 18 inches from the ceiling and 6 feet 8 inches from the floor. However, in kitchens in a hotel room for example, these parameters are a bit different. Cove lighting in kitchens can be installed on the top of the cabinets. One of the aesthetic impacts that cove lighting causes is to make a room look larger and warmer when lighting the walls from a cove at the edge of the ceiling. On the other hand, lighting the ceiling from a cove at the top of a wall transforms the room into a cooler, more formal and quieter place.