1) What is an LED?
A light-emitting diode (LED) has been around since the 1950s, recently applied to lighting. It is made up of semi-conductor transistors that light up when voltage is applied. The traditional incandescent types light up when the filaments are lighted.
2) How long do LEDs last?
LEDTheLife’s high quality LEDs last up to 50,000 hours. However, a lifespan depends on the bulb or the lamp and typically last 25,000 hours on average (in practice, approximately 20 years with 6 hours of usage a day) compared to an incandescent lamp of 1000 hours (or just a few months).
The lifespan can depend on the amount of heat produced in the luminaire which is why we only source high quality lamps with efficient heat dissipation.
3) What is Colour Rendering Index (CRI) and how does this affect LED?
Colour Rendering Index (CRI) measures the ability of an artificial light source to reproduce the colours. Daylight equates to a CRI of 100 so the higher the CRI of an LED, the more natural the colour.
The CRI is one way to judge the quality of the colours reflected by an LED light. The CRI scale works from 0 to 100 with the max 100 being the most naturally daylight-like.
Normally, LEDs are at around 80% and these produce fantastically bright results.
4) What is Power Factor and why does this matter?
Power factor is the ratio of the real power to apparent power and represents how much real power that the electrical equipment utilises. It is always between 0.0 and 1.0, a power factor of 1 is the most effective and means that all energy supplied by the source is used by the load.
High power factor makes it easier to regulate voltage and the power quantity can be greatly improved as well.
Lighting with High power factor can convert electrical energy into light energy more efficiently. At the same time, it generates less heat and has better heat dissipation which could prolong the service life of the lights.
Lighting with high power factor can save you a lot on electricity bills.
5) What is Colour Temperature?
Unlike traditional bulbs, LED bulbs can emit light of different colours. These hues of colour are put into 3 categories: warm white, neutral white and cold white all measured in Kelvins (K).
Warm white (<2700 – 3300 K)
Warm white has a yellowish hue similar to that of the old incandescent bulbs. Warm white is hearty, pleasant and relaxing which is why it is mainly used in living rooms, dining rooms, bedrooms, etc.
Neutral white (3300 to 5500 K)
This hue is the whitest and most similar to daylight. Neutral white is ideal for rooms that require high brightness such as bathrooms, offices and kitchens. It is an energising shade of white which gives the most clarity.
Cool white (>5000 K)
Cool white emits a blueish light which best reflects the natural colour of objects. It is ideal for illuminating rooms that require high brightness such as attics, cellars, garages, outdoor lighting as well as shop windows and tables, etc.
6) What are lumens and how does this affect brightness?
With an equal consumption, LED lightbulbs have a much higher light output than the normal incandescent ones. Therefore, you cannot really compare the brightness between them in terms of wattage in the way that we’re used to. It is better therefore to compare by lumens (lumen) which is an exact unit of measure of light output (luminous flux).
7) Do I save money with LED?
LED light saves a lot of energy compared to lighting sources such as incandescent, halogen and fluorescent.
With LED lighting, you can reduce your bill to just £30 a year (from approx. £300). This means massive savings over 20 years!
8) What are the IP ratings and what do they mean?
IP ratings (International Protection Rating) are used to define levels of sealing effectiveness of electrical enclosures against intrusion from foreign bodies (dirt etc.) and moisture.
The first digit of an IP rating stands for "Ingress of solid objects", whilst the second stands for "Ingress of liquids".
For example, a rating of IP65 means that the matching product is "Totally protected against dust ingress" and "Protected against low pressure water jets from any direction".
And IP 45 for "Protected against solid objects over 1.0mm" and "Protected against low pressure water jets from any direction".
9) Can I retrofit LED bulbs into my fixtures?
Yes, absolutely. All LED bulbs on our website have been designed to directly replace your old halogen ones, all you need to do is to choose the right base type (and if you’re not sure, then simply get in touch!). As for other lights, please check the product description. In most cases, it doesn’t take any more time than changing a normal lightbulb.
10) Is there actually a difference between cheap LED and expensive LED?
Yes. Poor quality LED lights are usually made of cheap materials. It is not always obvious on photos, but it is easy to tell when you touch them in real life. You will be surprised at how quickly the cheaper ones fall apart.
A major difference between ours and the cheap LED lights is the warranty. When buying cheap LED lights, once they fail you will tend to get very poor service.
Please also remember to check the specifications of the lights you are purchasing. They may look the same, but ours produce greater intensity and brightness than cheap hobby lights.
Cheap LED lights also tend to flicker which can cause migraines and are harmful to the eyes. However, you won’t find that problem with our LEDs as we only source flicker-free bulbs and lamps
11) Is the brightness of an LED really as good as halogen lighting?
Yes. LED lights offer the same level of brightness as halogen lights. Please check the product description for the halogen wattage equivalents.
12) So why should I choose LEDthelife?
In addition to our benefits listed here, the main advantage of LEDthelife is the superior price-to-quality ratio found in the market thanks to our distinct and efficient supply chain.
13) What is the warranty on your products?
We provide a two-year manufacturers warranty from the date of purchase for all of our products. We will repair or replace without charge during this period. If any of our products fail due to a material defect or workmanship under normal usage, all obligations under this warranty may be obtained by returning the product to us.
14) What is an LED dimmer function?
Unlike incandescent lightbulbs, LEDs are not all “dimmable”. Therefore, it’s important to know if the LED bulb is installed with a dimmable control or not because if it is not adapted, the dimmer will not work correctly. A normal LED bulb adapted with a dimmable control will only switch on and off through phases of blinking. On the other hand, a dimmable LED bulb offers a varied range of lighting intensity.
15) How energy efficient is LED lighting?
LED lights are available to fit all types of fittings. A 10W LED lights has the same lumens with the 70-80W Halogen lights. Lumens is the amount of light output of a light source, brightness is the simplest way to tell. With the same brightness, the LED ones consumes only 1/8 of the energy. It costs you nothing on the replacements in its 50,000 hours’ life span. Save on your electricity bill in the long term.
16) What is flicker-free lighting?
Flickering is when an LED doesn’t emit a constant light. This is due to poor circulation in electricity by poor electrical components. An unstable flickering light is harmful to eyes, more specifically to the retina. This is why LEDthelife only offer flicker-free LEDs!
17) How to recognising a flicker-free bulb?
A very simple way to notice if an LED flickers is to film it with a smartphone or camera. If lines appear on your screen, then it is a sign that the light is flickering. On the other hand, if the light is uniform then this demonstrates that the LED light is constant and flicker-free.