Question 1

Why is LED a better option?

Accepted Answer

Compared to traditional light emitting products, LED is extremely energy-efficient. Also, the structure and methodology behind LED chips made it very durable. Simply with these characteristic of the LED, it saves users expenditure and gives our motherland earth a cleaner environment. And that is just a small sect of LED’s “goodness”. Here are some more:

LED is Instant ON

LED lights switch ON and OFF instantly, it doesn't need more warm up time and less flicker. Therefore LED light is precise in how the user manipulate it and clean as the environment gets brighten with no hesitation. It’s not merely light turning on instantly, it is a characteristic that LED has to offer.

LEDs run cooler and can be safer

LED lamps run much cooler than traditional halogen lamps es and decoration which can occur with hot lamps - so your light fittings will last longer.

LED lamps last much longer - Saving even more

LED lamps have lifetime more than 25,000 hours, which is over 22 years if used for 3 hours per day. Conventional bulbs last around 1,000-2,000 hours (1-2 years) and CFL around 6,000 -15,000 hours (6 to 13 years).

LED gets the green light - More light with much less energy

Over the lifetime of an LED product, less electricity and replacement products are used; saving even more energy in transportation, packaging and maintenance when compared to conventional lamps. All this adds up to lower CO2 emissions, a win-win for you and the environment. As LED lamps are very efficient, they are the perfect product to compliment renewable energy sources such as solar panels or wind power.

LED is Mercury free - Unlike CFL

A small amount of Mercury is used in CFL bulbs. Any reduction in the use of Mercury will benefit the environment.

LED is highly energy efficient – Less heat, more light, lower cost

Use less electricity for the same light output - 85% less electricity when compared to conventional lighting and around 18% less electricity compared to CFL. Worldwide, around 20% of electricity is consumed in lighting. LED can make a big impact on your energy use. Savings really ratchet up in areas such as security, where lights are left on for longer periods.

LED is fun

The range of LED products is increasing and products like LED strips that can change color and brightness make it easier to produce light effects almost anywhere.

Question 2

What is a Lumen?

Accepted Answer

How do you understand lumens in light bulbs and light fixtures?

The lumens definition is "a unit of luminous flux in the International System of Units that is equal to the amount of light given out through a solid angle by a source of one candela intensity radiating equally in all directions."

Lumens (denoted by lm) are a measure of the total amount of visible light (to the human eye) from a lamp or light source. In short, lumens means brightness, the higher the lumen rating the “brighter” the lamp will appear.
The lumens is one of method to find out how bright a lighted bulb or lighting fixture is. If you want a fixture with bright, it's the key to choosing the perfect piece for your lighting scheme.

What’s the Difference Between lumen and a Watt? And lighting efficiency comparison

There is often a confusion between Lumen and Watt. Watts measure energy output, not light output. Normally not rely upon wattage to indicate how bright a bulb is. Watt and lumen units represent different quantities, so you can't convert watts to lumens.

However, you can judge two number to define the luminance efficiency, such as higher lighting efficiency is better than low efficiency. For example the lighting efficiency on the 30w/2400lm is better than 42w/3000lm on the same item.

More light (Lumen), less energy (Watts) with LED

With low energy LED lamps, more light output can be achieved with much less power consumption. When using LED more energy is converted to light rather than heat. As technology improves, more lumens will be produced using even less Watts.

Knowledge