LED lighting is often written about in a very technical way. Luckily, the people at Digilight are fluent in gobbledygook, so we’ve translated the scientific jargon associated with LED lighting into plain Australian. When broken down, it’s actually not too hard to get your head around. And it helps consumers get a better understanding of how LED lighting compares to older types of lighting.
We have specific pages that give more detailed analyses of the following terms.
For a detailed analysis of LED Colour Click Here
For a detailed analysis of LED Brightness Click Here
For a detailed analysis of LED Distribution Click Here
Current (Amps) = Power (Watts) / Voltage (Volts)
* Hue – a situation in which different colours appear similar, such as in matching blues and pinks.
* Lightness – Describes the level of grey between monochromatic colour.
* Chroma – Describes the variation in lightness of the same colour e.g. green, greener, pure green.
Efficacy concerns itself with the amount of light produced by a certain amount of electricity. This is spoken about in terms of efficiacy, which is spoken about in lumens per watt.
Lumens=amount of light
Watt=amount of power used to create it.
3 things affect junction temperature. These are:
* drive current
* thermal path
* ambient temperature
Generally speaking, the more powerful the power supply aka the drive, the more heat that is produced at the die. Heat needs to be moved away from the die to preserve life-span, light output and colour of the LED product. To get the most from LED’s, the junction temperature should be kept as low as possible and keep within manufacturer specifications.
Check out this website for more info on LEDs.
It’s important to note that a 100,000-hour life rating does not mean the LED will last 100,000 at full capacity. At 100,000 hours it still be working, but at a decreased lumen output.
100,000 hours in real terms:
24 hours a day 11.4 years
18 hours per day 14.8 years
12 hours per day 22.8 years
8 hours per day 34.2 years
1. They contain zero mercury. Mercury is poisonous, and when not disposed of correctly, can wreak havoc on the environment and threaten plant and wildlife species. Many consumers are unaware of the currect procedure regarding the disposal of incandescent lightbulbs, and so millions are carelessly dropped in landfills every year. Standards (RoHS), compliant,
2. They last longer. A lot longer. This means that as well as saving money on your power bill, you save money and time on replacements.
3. They produce less waste.In terms of weight, almost a quarter of the product is made using recycled materials like aluminium castings and extrusions.
4. Nearly three quarters (by weight) of LED lighting fixtures are readily recyclable.
5. LED circuit boards, drivers, wires and connectors are all non-hazardous, mercury-free, and RoHS compliant.
* High efficacy and durability mean that they will last longer than other lamp sources, a lifetime in some cases.
* Low maintenance. Without the need for costly and often inconvenient replacements, consumers save money, save energy and save the planet all at the same time.
* Greater optical control. Dimming, instant on/off, and reduced rate of lumen depreciation mean that consumers can apply the required amount of light to a particular task, or create the desired mood in a room.
The New Zealand website is at www.digilight.co.nz