1.) HOW DO LED's work?
LED's stand for Light Emitting Diodes. This lighting technology is comprised of 3 main components: the actual LED's (the set of diodes that produce the light), the driver (a transformer that converts AC to DC) and the heat sink (the plate holding the diodes that keeps everything cool). LED's take DC power from the driver and create light. The heat sink captures heat from the LED's and the drivers. Although LED's produce significantly less heat than the incandescent bulbs we have used to over the past century, proper heat design allows for the longest the life of the product.
2.) what are thew benefits of converting to led?
- Any Color Temperature - Any color temperature for the needs of your facility.
- Energy Saving - An immediate reduction in your electricity bill.
- Long Lasting - Over 20 years longer than existing lighting.
- Maintenance Free - Highly durable, LED lighting can produce over 20 years of non-stop use.
- More Control - LED's are digital and connectable to the internet for unlimited potential.
3.) how much money can you save by converting to led?
LED Lighting is a significant financial improvement to any business. The savings depend on what lighting is being converted, the operating hours, and the cost per kilowat for that facility. Incandescent, Fluorescent, and Metal Halide are all much less efficient than LED. It's not uncommon to see 80% energy savings after wattage's, ballasts, and recurring replacement costs are considered. Given the long life of LED's, these savings are typically over 10 times the cost of the LED's, making for a wise investment.
4.) What color temperature is available with led?
One of the most common misconceptions about LED is that the color of the light is fixed. Not only is it very versatile, in fact, the color of LED is far more controllable than the color from traditional lighting sources.
Color temperature is measured in Kelvin (K). Below is an example of how the lighting changes as the Kelvin color temperature changes. For most commercial and industrial lighting applications, we recommend termperatures in the 4000K to 6000k because this range produces a vivid off-white that's easy on the eyes and operates at exceptional efficacy (lumens per watt) which decreases energy consumption.
5.) are led's dimmable?
Yes and No. First, not all LEDs are dimmable. The driver must be designed to allow dimming. Secondly, you must purchase the right type of dimmer. Most retail stores now carry dimmers specifically designed for LED bulbs. Please note, if you purchase a non-dimmable LED bulb and try to dim it, it will cause the bulb to fail and also void the warranty.
6.) are led's hazardous?
Controls are intelligent lighting. With simple add-ons like motion-sensors, photocells, dimming, ADDITIONAL energy savings can be achieved. Motion sensors (AKA Occupancy Sensors) trigger the light on and off depending on the presence of a person, diminishing operating time and energy draw. Photo cells illumunate depending on the darkness of the ambient night.
7.) What is the difference between LED and CFL?
Both lights are energy efficient light sources that are much more efficient than the bulbs they replace. Here is a small list of the differences between CFLs and LEDs:
a. CFLs are the spiral tube like bulbs. They are really mini fluorescent bulbs with self contained ballasts. They contain a small amount of mercury. LED bulbs are the new style looking bulbs with heat sinks and round mini globes. They do not contain mercury.
b. You can replace a 22W CFL bulb with a 11W LED bulb.
c. LED bulbs are instant on, instant off. CFLs take 30 seconds to 1 minute to warm up after they are turned on
d. LED bulbs are not affected by turning them off and on. CFL bulbs are, as this will reduce their life.
8.) What is the difference between LED and HID?
9.) What is the difference between LED and Incandescent?
10.) How long do LED's last?
A long, long time. We source only the finest manufacturers and look for tested lifespans of around 100,000 hours. Even if your lighting your facility 24 hours a day 365 days a year, our lighting will last you well over a decade! At more usual operating hours, our lighting is expected to last over 20 years.
11.) What warranties are available with LED's?
Most of our LED Lighting comes with 3, 5, or 10 year manufacturer warranties. Warranties only apply for normal use and do not cover usage for which the bulb was not intended to perform. Depending on the manufacturer and upfront cost, some warranties are parts-only warranty and some cover the cost of labor or shipping. Our puchasing team has excellent buying power with manufacturers and gladly fights to get our customers the warranty that suits their needs.
13.) What are standard LED replacements for HID and CFL?
Below is a Lighting Cross table. It tells you the wattages and the the lumens for HID, CFL, and LED light sources. For instance, a 1000W HID light equates to a 800W CFL light and a 400W LED light. All three sources produce about 43,200 lumens at a Neutral White (NW) color temperature.
14.) How do you replace flUOrescent tubes?
There are several steps, but essentially this is none more difficult than a bulb and ballast replacement.
1. Remove the fluorescent tubes, and then remove the ballast.Note: there are also ballast compatible tubes that allow you to convert to LED by simply removing the old fluorescent tube and replacing it with the LED tube.
2. Replace the existing tombstones (only if necessary). This step may be required with single ended powered tubes if you have shunted tombstones.
3. Rewire the fixture to accommodate the LED tubes.
Our internal driver LED Tubes use AC current, and then converts the power to DC within the internal LED driver to light the LED's. There are some tubes that can be driven from the fluorescent ballast, but we do not supply those tubes as we see fluorescent ballasts as a maintenance item. Ballasts consume about 4+ watts per fluorescent tube installed, so leaving the ballast in place reduces the energy savings as well.
We also can supply externally driven LED tubes. With these tubes, the driver is externally housed outside the tube, and is usually installed where the fluorescent ballast was located. External drivers act the same way as internal drivers; they accept AC power, convert it to DC which is supplied to the LEDs in the tube.
In the case where you have a native DC system (such as solar systems) you are best to look for externally driven LED tubes and forgo the installation of the driver. You will have to make sure the DC power that is supplied to the fixture is compatible with the DC power requirement of the tubes.
15.) What is the difference between shunted and unshunted tubes?
In single ended powered tubes, you power only one end. This type of installation is referred to as un-shunted. Since the tube has two pins on that end, you would send line to one pin and neutral to the other. (think of line and neutral as the black and white wires of electrical wire)
In double ended powered tubes, you power both ends, one with line source, the other with neutral. This type of installation is referred to as shunted.
In most cases, our tubes our single ended powered tubes. It conforms with the latest UL standards for safety. Proper installation of our tubes in existing UL fixtures maintains the UL certification of the existing fixture.
We can also provide new fluorescent ends (tombstones) so that you can convert over to single ended powered tubes.
16.) What is L70?
L70 is the amount of time it takes for a light to degrade to 70% of initial lumen output
17.) What is CRI?
CRII is the Color Rendering Index. It measures how closely a light resembles natural daylight. The range is 0 to 100. The high the score, i.e. 85, the closer the light resembles natural daylight.
18.) What is DLC?
The Design Lights Consortium is quality control board that holds manufacturers accountable for their product claims and provides certification to retain rebates from utility companies.
19.) What is efficacy?
Efficacy is the amount of lumens created per watt of energy burned.
20.) How can LED's fail?
Heat. Heat is the enemy of electronics, the hotter it is, the shorter the light. However, with good design, you can create a light or fixture that can withstand some high heat environments. Typically a fixture or bulb with an external driver will last longer than an integrated fixture that has the LEDs and driver as one unit.
21.) Should I buy LED's based on watts or lumens?
Always buy based on lumens, watts is a number that is used to determine how much energy it takes to produce those lumens. It is important to pay attention to lumens per watt, or lm/w. The higher the number, the less energy you will need to produce the light. You will notice that some lights take less energy to produce the same amount of light, and this is something you should watch for. Typically, the higher the ratio, the better.