How long do LED's Last? |
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The lifetime of an LED bulb is determined by estimating the point in time when the light emits 70% of its original lumen output. For example, an LED bulb with a rating of 50,000 hours and 300 lumens will emit approximately 210 lumens at the 50,000th hour of operation. Keep in mind that LEDs do not burn out, so the lifetime is potentially significantly longer than it's rating. Your light can keep shining for over 100,000 hours or 20 years.
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Is there a way to calculate the energy savings if I switch to LED?
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First, determine your yearly hour usage, 8 hour day (really 10 for fluorescent) is around 2500 hours. Next, determine energy savings per fixture. A standard T8 with 2 tubes at 40 watts each with ballast pulls around 105 watts. Our LEDs pull 36 watts total. Watts difference is 69. Therefore hours of use (2500) times Kwhr rate of (.12) time watts difference (69), convert to Kwatts /1000 equals savings per fixture per year. In this case $20.70/yr/fixture.
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How much energy can I save?
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Led lights replacing sodiums can save as much as 80% off of your electricity bill. Replacing fluorescents can be anywhere from 30-60% based on the different types of fluorescent and the application.
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What is a typical payback period if I wish to change over from my fluorescents?
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Based on a standard 10 hour work day using T8 fluorescents you could have paid for the changeover in 4-5 years. With sodium lights it can be short as 2-3 years. That's not including hydro rate increases.
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How durable are the lights?
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Nutube lights are designed with custom molded impact resistant plastic. LED's are solid state, meaning no loose parts, mounted to a circuit board for shock absortion. And no glass!
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How safe is the power coming out of LED lights?
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Nutube LED lighting systems are designed to be low voltage and current. As well as no glass or harmful contaminants.
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How "green" are your products?
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LEDs contain none of the following: UV, IR, mercury, lead, gases, hot filaments.
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Are they dimmable?
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LEDs are infinitely dimmable to conserve energy as required or decrease lighting as needed. They can be set to turn completely on or off depending on the applications.
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How efficient are LED's ?
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50 – 100 Lumens per Watt versus 15 – 20 Lumens per Watt in standard incandescent bulbs.
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What happens when the LED burns out?
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LEDs typically do not ‘burn out’ like standard light bulbs. Rather, they gradually degrade over time. Our lights should retain 70% or more of their brightness for up to 100,000 hours, which is 20 years if operated for 12 hours a day.
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What is the difference between Cool White and Warm White?
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Warm white was developed to look like an incandescent light bulb and may be a better choice for residential uses. Cool white is more like the color of white that is produced by fluorescent lights. It is 25% brighter than warm white and is better for applications that require increased illumination or more energy efficient fixtures.
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What is your warranty?
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Nutube Limited Warranty
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| Nutube Limited warrants that the products it manufactures will be in good working order, upon delivery and installation for a period of 5 years (60 months) from the date of invoice. |
| During the warranty period Nutube Limited will, at its sole discretion, repair or replace the product or the defective part thereof. It is the purchaser’s responsibility, including |
| shipping costs, to return the failed merchandise to Nutube Limited for product warranty exchange. Repair or replacement products may be new, re-manufactured or refurbished, at the | |
| sole discretion of Nutube Limited. Nutube Limited is not responsible for any costs associated with the installation, removal, re-installation or transportation to Nutube Limited, |
| which are not defective or which sustained damage not covered under this warranty, will be tested and /or repaired at Nutube Limited standard labor rates. Only warranty claims |
| submitted to Nutube Limited in writing within 30 days of problem origin will be honoured. |
| For purpose of clarity, “repair or replace the product or the defective part thereof” does not include any reinstallation costs or expenses, including without limitation labor |
| costs or expenses. |
| If Manufacturer chooses to replace the Product and is not able to do so because it has been discontinued or is not available, Manufacturer may replace it with a comparable product. |
| This limited warranty covers the following: |
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| 1. Depreciation of light output of 15%. |
| 2. Light failure due to circuit failure. |
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| This limited warranty does not cover the following: |
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| 1. Product failure caused by faulty power supplies, overheating caused by improper installation, omission of heat sink parts of misapplication/omission of heat transfer compound. |
| 2. Failure caused by fires, misuse, accidents, abuse, neglect, mishandling, misapplication, improper handling/installation incurred by the user/installer or Acts of God (such as |
| lighting or fluctuation in electrical power). |
| 3. Products which have been modified or have had the serial number altered, defaced or rendered illegible. |
| 4. Product is left operating in conditions/requirements other than those mentioned in respective products brochures or user manuals. |
| 5. The product had been serviced by personnel not authorized by Nutube Limited. |
| Nutube Limited shall not be liable for any loss of use of the equipment, inconvenience, or any other damages, whether direct, indirect, incidental or consequential resulting |
| from the use of this product, or arising out of any breach of this warranty. The limited warranty and remedies set herein are exclusive and in lieu of all other warranties whether |
| statutory, express or implied including all warranties or merchantability and fitness for particular purpose and all warranties arising from course of dealing or usage or trade. |
| No person, agent, distributor, dealer or company is authorized to change, modify or extend the terms of this limited warranty in any matter whatsoever |
| This warranty applies only to the repair or replacement of the product and only when the product is properly handled, installed and maintained according to Nutube Limited’s |
| instructions. We reserve the right to change the warranty period without prior notice and without incurring obligation and expressly disclaim all warranties not stated in this |
| limited warranty. |
| LED drivers are excluded from the General Warranty. Manufacturers of LED drivers are solely responsible for any costs or expenses related to any claims, repairs, |
| or replacements associated with any such component(s). |
What are Lumens?
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Lumens measure brightness. A standard 60-watt incandescent bulb, for example, produces about 800 lumens of light.
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How do I convert mcd to lumens?
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1000mcd is approximately equal to 1 lumen.
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What is an LED?
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An LED-or Light Emitting Diode-is a semiconductor electronic component. Diodes are commonly used in all sorts of electronic circuits and allow current to pass in only one direction. Very specific semiconductor compounds are used to make LEDs which have distinct characteristics of emitting a certain color of light when current passes through them.
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Are there other applications?
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Solar and Wind power are becoming standard power sources around the world. Light Emitting Diodes are inherently low voltage which work very well with the standard alternative energy components. Converting from DC to AC power through an inverter has electrical loss associated with it. Low voltage LEDs keep the project design very efficient by not having to convert.
Another technology being worked on involves sending computer signals through led's to create a wireless "light" network. Future applications can be for secure networks built into the LED lighting systems in buildings.
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