Wall pack Lighting refers to the exterior lighting usually installed on the outdoor walls of buildings. This kind of outdoor lighting is often used to offer light to outdoor areas for pedestrian and vehicle, also for the purpose of security.
Please kindly check some image examples of outdoor area lighting fixtures in wall pack lights that you may be familiar with.
There are some inherent characteristics in all HID lights. They can give rise to issues for those managing outdoor lighting for a facility or organization.
Common wattages of HID wall pack lamp ranges from 70w to 400w. The higher light output needs the higher wattages. A 175 watts or 250 watts HID lamp (very common wattage for Wall Pack Lights) costs up to $92 and $132 per lamp per year in electricity cost alone.
Maintenance costs are usually a great focus for exterior lighting, such as wall pack lighting fixtures. Besides the concerns of lamp lifetime, outdoor building lights usually need to make the use of a lift or bucket truck to replace a ballast or a lamp as they are usually installed on the building walls over 15ft. Most of buildings and facilities do not have bucket trucks or lifts, so an external contractor has to be hired to maintain these fixtures. These expenses will accumulate in a few years. For instance, it may require up to $4,459 in manpower and materials to maintain one wall pack fixture in three years.
According to the kind of HID Lamps your building or facility uses, it can vary evidently in the performance characteristics of your wall pack light fixtures. For instance, you can see the light that is "Whiter" when you use the Metal Halide lamp. However, these kinds of lights tend to accelerate lumen degradation, which means that the light output of the lights decreases rapidly after initial mounting, causing a decrease in the overall lifetime of the lamps (We've all seen those “pink” wall pack lights, which are hard to offer any lighting on the ground).You can see the longer “useful” lifetime when you use High Pressure Sodium, because the lumen degradation of this type of lamp is less than metal halides’. However, it is with a very low Color Rendering Index (CRI) as its fuel structure provides a really “Orange” light. By and large, you trade your longer lifetime for poorer quality light from a visual point of view.
It would be significant to know the advantages of led wall packs due to the way they GENERATE and DISTRIBUTE light. Different with HID lamps that generate light via the consumption of a “fuel source” , Light Emitting Diodes (LED) do it through semi-conductor. With regard to " distributing " light, LED lighting fixtures usually use “Multi-Point” sources, which implies that LED lighting fixtures have multiple diodes and separate optical elements. If you compare the distributing light of HID lighting fixtures (there is a bulb and reflectors in the lamp), the consequence is that the light of LED is more equably “distributed’ on a surface.
Normally, the wattages of wall pack led lighting fixtures range from 24w to 82w, which usually leads to 40% to 60% energy consumption reduction. This is the consequence of how light is produced (see above). It means that your facility can save up to $300 for one light each year in electricity bills.
Likewise, because of the way of LED’s generating light, it is quite different in the way that it progresses through its functional life. Despite the significant reduction in fuel source, LED (Light-Emitting Diode) fixtures degrade their light output really slowly over time rather than Stop working properly at once. Consequently, the lifetime of LED fixtures (usually more than 100,000 hours) can be evidently longer than that of HID fixtures. For instance, by changing a traditional 250 watts HID wall pack lamp into a LED wall pack light, a common facility with outdoor building lightings will cut down to $5342 over a three-year maintenance period.
Moving on to how the LED lighting fixtures “Distribute” light: It is reason of multi point design that Outdoor wall pack led lighting fixtures usually offer a quite uniform distribution of light pattern. It means that, when the distance of the fixture varies, there is less change in the light level across a given surface. HID lamps usually generate a "Bright Spot" under the lamps. With the increase of distance from the lamp, the brightness decreases sharply. This problem can be alleviated by uniform distribution of LEDs. As comparing to HID, the foot candle from LED conversion are more evenly distributed. Besides the uniform distribution of light, LEDs can be used at a range of color temperatures, thus offering a range of options to raise the visual perception of “BRIGHTNESS.”
The first is to communicate with manufacturers' neutral suppliers of LED lighting solutions provider. Why is this method opposite of the company you might have used in the past few years? Unless that company focuses on offering LED solutions, it is unlikely that they will have the performance-centric mentality needed to achieve the desired results of your wall pack lighting conversion project. A key step in any LED projects is to understand that LED technology is not a commodity. Previous decades included building facility managers and owners assessing product options purely based on cost, assuming that all options considered were of equal quality.
Solution-centric suppliers should ask you questions about project objectives. Are there energy reduction targets, lighting performance requirements, and budget constraints, etc? The right partners will expect to know the results you want rather than just what specific products they could sell to you. It is unequal for all LED products. For different applications, different manufacturers have different value levels. You will finally get the best result through working with companies, who have the product expertise to recommend solutions that meet your project priorities.