The “AR” in AR111 stands for aluminum-facetted reflector. This means the bulb is equipped with faceted reflectors that allow the bulb to emit a narrow beam of focused light in a spot or floodlight pattern. The “111” is a measure of diameter in millimeters, so AR111 bulbs are 111 millimeters across, or about 4.5 inches.
AR111 LED bulbs are used to provide accent and display lighting for a wide variety of indoor and outdoor spaces. They are also usually seen in retail stores. AR111 LED bulbs are great options for larger spaces that need a long-lasting, low maintenance, and concentrated light source. Some common uses for AR111 bulbs are to highlight art in museums, galleries, and hotels, or for outdoor architecture and landscaping. Due to their low voltage and high energy efficiency, they are also very cost-effective.
Both floodlights and spotlights illuminate from a distance. Spotlights provide a focused, narrow beam of light typically no wider than 10-20 degrees, while flood lights emit a broad, wide beam of light with angles of around 45 degrees or more. Spotlights are best for highlighting singular objects like artwork or other statement pieces, while floodlights are ideal for illuminating large areas like parks, sports fields, and outdoor landscaping projects. Both spotlights and floodlights can be used for indoor or outdoor lighting.