3 LED bollard lights have the exact same 15w LED array, the exact same Samsung LEDs, the same driver, and use the exact same quantity of energy, but the quantity and distribution of the emitted light differs. Why? The response: Optics.
The light produced by a bollard is always affected by the place of the source of light, the range of reflector, and the physical develop of the bollard housing. For example, while the three bollard lights utilize the exact same 15w LED range, one gives off 1,022 lumens while another throws 2,089 lumens– more than two times as lots of. Let’s enter into the purpose of each specific reflector and the net result of its optics. A good location to begin is to see all the LED bollard lights with the very same 15w LED array, click here.
A Means of Comparison
We will provide the 3 different bollard optics in the same way:
First is an image of false color rendering. It shows the quantity of light emitted, in color and with footcandle readings. The darker the color, the less light discharged. Each number on the image represents the footcandles at a specific distance far from the bollard. This supplies a visual introduction of light in a specified area. The location displayed in the incorrect rendering images is 20′ x 20′.
Each reflector likewise has a graph that reveals the delivered footcandles at different distances from the bollard lights. While the charts are more exact than the false color renderings, they do not supply as brilliant a graphic.
You will likewise see light source lumens and provided lumens for each type of bollard light optic. If you are you looking for more info on https://clients1.Google.ru/url?q=https://rebrand.ly/feit-4-linkable-led-shop-light review the website. Source of light lumens will be the same for each of the three bollards. Provided lumens represents the overall light given off by the bollard light with that optic. The last information point we will provide is the farthest distance from each bollard that is still lit with.5 footcandles, or 0.5 fc.
Louvered LED Bollard Light Optics
Louvered LED bollard lights are created to direct the light down in an effort to lower glare and light trespass. Louvers significantly cut down emitted light in addition to the range that light can take a trip. Consequently, louvers discharge the least amount of light and have actually restricted light distribution.
Keeping a minimum of.5 footcandles in between 2 of these louvered bollard lights would require spacing of nine feet or less.
Type V LED Bollard Light Optics
Type V LED bollard lights are designed to disperse the light out and all around the bollard. With the LED array mounted below the top of the unit, the only limitation to the light is the clear, prismatic, IES type V borosilicate glass refractor, which decreases glare. While the refractor minimizes glare and doesn’t limit the light, the amount of light emitted is a little decreased if compared to the specialized aluminum cone reflector. However, the circulation of light is more broad than that of How Much Power Does A Led Light Use bollard with an aluminum cone reflector, so deciding in between the two is a matter of individual preference.
Aluminum Cone Reflector LED Bollard Light Optics
Aluminum cone reflector LED bollard lights are created to direct the light down and out. The strength of the light is increased by the aluminum cone reflector. Just like the other 2 15w LED bollard lights, the LED range on this bollard is mounted on the top. While the aluminum cone reflector increases the quantity of light, it doesn’t necessarily increase light distribution if compared to the type V optics, making the choice between aluminum cone reflector optics and type V optics a matter of individual preference.