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world of thoughts

Why Choose LED

What is an LED light?

LED (an acronym for Light Emitting Diode) is a solid state semiconductor device. LEDs emit light when their semiconductor crystal is stimulated. This technology has been around since the 1960s and was first used in indicators and alarm clocks. LEDs are much smaller in size than traditional light bulbs. Recent technological advancements have led to LEDs being more viable as a light source for general illumination in applications such as home, office or commercial lighting spaces. Their benefits include long life up to 70,000 hours, superior energy efficiency, generate very little heat, low maintenance, low environmental impact, instantly emit full brightness, easily dimmable, silent operation & no flicker.

What is an Incandescent Light?

Incandescent light bubs work by heating a a resistive element until it is extremely hot and can create light. It is the second oldest form of electric lighting the oldest being the Carbon Filament Bulb. Incandescent light Bulbs are very inefficient as a source of lighting as most of their energy is converted into heat, and only a small portion is converted into light. Incandescent Bulbs also consume a lot of power and have a short lamp life. The Australian government has placed a ban on producing these lights and imports are also restricted. Currently the only suitable replacements for  incandescent light bulbs are CFLs (COMPACT FLOURESCENT) and LED bulbs.

What is a Halogen Light?

Halogen lighting is a slightly more efficient version of the incandescent light. Halogen Lamps emit light by passing electricity through a tungsten filament, this tungsten filament is enclosed in a glass envelope containing halogen gas.  Halogen lamps are superior to incandescent lamps as they last longer & and are  a brighter light. However, they emit a huge amount of infrared heat, making them a fire hazard as well as being an inefficient light source.

What is a Compact Fluorescent Light?

Compact fluorescent bulbs or  (CFLs) produce light by heating a gas which excites a phospor coating on the inside of the glass tube. CFLs can be harmful to both the user and the environment as they contain small quantities of mercury. CFLs offer a similar light to incandescent bulbs.  Although CFLs are energy efficient and often less expensive then other energy efficient lights, they have their  disadvantages. They tend to flicker and are also unable to turn on instantly often taking a few minutes to reach full intensity. They can also produce a constant humming sound, which can lead to headaches.

1. This is the product failure horizon. The light will also produce 80% light output at 40,000 hours. This is determinable from IES-LM80 test data and the predictability afforded from thermal monitoring and subsequent current regulation.
2. Surface temperature at an ambient room temperature (TA) of 25°C.
3. Halogen downlights have a greater efficacy than incandescent downlights and therefore emit less heat, however their smaller surface results in a higher surface temperature.
4. At an ambient temp of 25°C the average LED bulb will have a surface temp of 85°C. If the ambient temp rises then this surface temperature will rise past the level set by Australian and International standards level of 90°C that denotes a fire risk which then demands various clearances and coverings to be applied to the bulb. Any LED without thermal monitoring will rise above the 90°C mark and pose a risk. Consequently, thermal monitoring can be used to guarantee the product life of an LED downlight. A current rollback at 90°C from thermal monitoring will produce a very short life LED and a current rollback at 75°C will produce a very long life product.
5. All recyclable parts are easily dismantled at the end of the product’s life, without the need for special tools.
6. CFL downlights actually produce more light than this level of efficacy. However, the nature of the curled bulb design and its non directional light prevents all of the light generated from CFL’s from being emitted in the form of a downlight. The reasons CFL’s are not suited to downlights are also the reasons that make them great for replacing normal bulbs.
7. This extremely low lumen output for 10W is the result of running low output LEDs at maximum power to reduce product cost and product life. This is common among most major suppliers that sell both replacement LED and halogen bulbs.
8. All warm temperatures products in this table are 3000k and have a high CRI of 90. Cool temperature products are above 3000k and have an average CRI of 85.
9. Data from EnergyStar and Brightgreen. All Brightgreen products are tested at a NATA accredited laboratory: test reports are available on request.
10. Includes cost of power and replacement bulb cost.
11. Down lights are a considered a form of direct lighting which is the most efficient form of lighting as nothing is lost between the light source and the area being lit. If used in a flood format from 45-60 degrees it gives optimal coverage as it is not as spot light <45 degrees which has a limited coverage and is not a broad flood light, or omni, >60 degrees which floods walls thus becoming a form of indirect lighting that looses efficiency as it reflects off dull surfaces.