When doing an outdoor lighting project, there are so many options to choose from. Among all available lights, the most energy efficient are easily the ones with LED technology. Once you know LED is the way to go, you have to know what beam you need, how wide of a beam is necessary, and how to calculate the beam spread you’ll need. Let’s take a look at a few of the key differences between an outdoor LED flood light and the LED spotlight.
Spotlight – an LED spotlight will project a light beam that fairs on the more narrow side, at 45 degrees or less. This sort of beam spread is concentrated in a more specific area, and can be simpler to direct.
Flood Light – LED bulbs in this category create a large beam spread that can cast from 50 to 120 degrees of light. As this is a larger beam, this light covers a significantly large amount of space without compromising energy efficiency (wattage) or light brightness (lumens) in comparison to the spotlight.
Which to Choose?
LED spotlights can be seen when looking to highlight specific points or details, such as artwork in a museum, features in landscaping, or items for display.
If your project requires illuminating large spaces that need a wide and even distribution of light, the outdoor LED flood light is the one you want to go with. These lights are used in settings such as parking lots, warehouses, other commercial spaces, and driveways to name a few.
Measuring the Coverage Area
While having a general idea of what setting a spotlight or floodlight can be used in is helpful, being able to measure in feet how much coverage you’ll have per light can make your lighting project run even more smoothly. Keep this formula handy for when you need to do just that:
Distance from Bulb x Beam Angle x 0.018 = Beam Width in Feet
For example, if you want to cover 20 feet of area using a 90 degree floodlight:
20 x 90 x 0.018 = 32.4 feet
With your knowledge of how an outdoor LED flood light differs from an LED spotlight, and with this formula in hand, you’re now more than ready to take on that next lighting project.