A flush-mounted outdoor light works well attached to the ceiling of a porch or covered entry. They can also be used for a covered patio or deck area. The light is hardwired electrically to the ceiling and operated by a wall switch. It provides good ambient downward light to flood the local area, especially useful above a doorway or entrance. Being close to the ceiling/roof they allow amply head-room for people coming in and out. You may need more than one for a larger porch or wraparound deck.
This item features a specially applied finish, which is particularly durable in harsh weather. While all outdoor lights are designed to be safe for use in wet, hot or cold conditions, this weather-resistant light provides an extra barrier of protection. It is particularly suited for harsher weather, including the corrosive nature of salt-water near to coastlines and sea-water. The finish will last longer and keep the light protected and looking attractive. For the ultimate strength in weather resistance and longevity, this item is a great choice.
For outdoor use, ceiling lights should be mounted underneath the overhang of a porch or covered deck. They could also potentially be installed in a garage.
A ceiling-mounted outdoor light fixture will shine its light downward and outward over the local area. At night this light may well spread out over a fairly large area, centered on the porch. But it may not reach to the further reaches of a yard without additional lights. You may want to pair it with some wall/garage lights.
An electrician or person with electrical installation knowledge will need to permanently wire the ceiling light into the building's electrical supply.