CREE^® X-LAMP MT-G2 LIGHTING TECHNOLOGY
high light output & ultra high efficiency

1. Why should you buy the LITE-PD-MTG2 7W MT-G2 LED MR16 Bulb?
2. CREE LED Lights - I have never heard of the light brand CREE, what is CREE? Is it good?
3. LED Light Life-time - What does the LED Life mean? Will it really last 25 years or more?
4. Will this LED module work with my existing 50W halogen transformers?
5. LED Light Flicker - I've pluged in my new 7W CREE LED MR16 Bulb but there is a flicker when turned on.
6. LED Light Buzzing noise - I've pluged in my new LED MR16 Bulb but there is a buzzing noise when it is turned on.

1. Why should you buy the 7W MT-G2 LED MR16 Bulb?

50W Halogen Equivalent. With a light output of 540 lumens the LITE-PD-MTG2 matches the output of a traditional 50W halogen. See illustrated photos and our LED downlight comparison chart to see a direct comparison.

Latest LED Technology, Reliability and High Quality. The LITE-PD-MTG2 uses a latest generation 2012 CREE LED produced by the renoun LED manufacturing company CREE. The US based CREE® is a NASDAQ listed US company and a market leader in the manufacture of LEDs. The 2012 MT-G2 LED represents the latest generation in CREE’s X-lamp LED design producing unprecedented output light and efficiency [1].

“The first EasyWhite LED array built on the SC³ Technology Platform, Cree's XLamp MT-G2 LED pushes performance limits to redefine lumen levels and efficacy while delivering the industry’s best color consistency and superior optical control. MT-G2 LEDs are designed for high-output, directional lighting applications and are the ideal replacement for lighting applications that currently use inefficient halogen lamps. MT-G2 LEDs are optimized for use in accent, track, retail display and down lighting applications where color quality, consistency and optical control are required. The MT-G2 LED delivers up to 1987 lumens in cool white and 1735 lumens in warm white, both at 18.5 watts, 85°C."

High Compatability - Plug and Play. The LITE-PD-MTG2 with use of its own dedicated LED driver can be plugged into any existing lighting system using with low voltage halogen downlights. It's low profile design will also fit the majority of downlight fixtures. 

Superior Cooling. With superior cooling comes longer life. The LITE-PD-MTG2 is used in our commercial applications where the bulb is exposed to rigorous conditions such operating 24 hours per day. The superior cooling is enabled by the use of a passive cooling system and an open face with a heat sink area larger than other similar bulb sizes in its class. This is due to the use of aluminium perforated veins (see photo) and slightly larger form factor (47mm length vs. 37mm for halogen) that permits the transfer of heat via the convection of air from the living space past the veins and through into the roof space. This design can withstand the most rigorous condition and is used in many of our commercial applications. 

Long Life. With a LED case temperature of approximately 60°C and the of long life electrolytic capacitors rated at 105°C the LITE-PD-MTG2 has a theoretical life span beyond 40,000 hours or 20 years in residential applications, assumming similar LM-80 response characteristics to the MT-G LED. 

Silent Operation. Some LED bulbs (e.g.,Philips Master LED downlight) contain small fans which emit a faint noise which can be bothersome in a quiet room. However, the LITE-PD-MTG2 with its passive cooling system can achieve 100% silent operation with compatible transformers.

2. CREE LED Lights - I have never heard of the light brand CREE, what is CREE? Is it good?

In LED lighting rather than having particular brands for the whole bulb or lamp like Philips or Osram, most branding refers to the manufacturer of the LED inside the globe which is arguably the most important part (read also section on power supplies). Some well known examples include CREE, Epistar, Bridgelux, Philips and Osram. 

CREE®, first formed in 1987, is a NASDAQ listed US company and a market leader in the manufacture of LEDs. Like Epistar, CREE's sole focus is the development of LED lighting which assists with evolution, quality and reliabilty of products. CREE is at the forefront of LED lighting technology producing arguably the brightest and most efficienty LEDs. Whilst the CREE LEDs tend to be more expensive you will find that they will produce more light with less power. Therefore, where efficiency (lm/W) is important CREE LEDs are a perfect fit. You can find out more about CREE by visiting their website at www.cree.com.

3. LED Light Life-time - What does the LED Life mean? Will it really last 25 years or more?

Yes, theoretically the LED in your LED bulb will last more than 25 years or even "light for life". In fact it will continue to glow at lower levels well past its L70 lifetime at 30,000 hours or so, to 100,000 hours which is literally a life time. However, in reality the limiting factor of the life of your LED bulb is the internal or external driver/power supply, particularly if you use your exisitng electronic halogen transformer which has probably already had a hard life working at close to maximum capacity.

However, depending on the quality many drivers and power supplies or transformers are rated at 20,000 to 30,000 hours so theoretically the LED bulb should still last 20 years in residential applications. The capacitors we use in our LED drivers or LED power supplies are special long life capacitors rated at operating up to 105°C. In reality they generally will operate between 30°C to 40°C and below there maximal rated voltage. So with this, together with the self-healing properties of the capacitor, they do have the potential to last for many years.

In reality, the theoretical life span for LED bulbs has not been fully tested in many applications given they have only really been around for 5 years or so in high power applications. However, a life span of 20,000 to 30,000 hours is well accepted in the industry and by government organisations. Many of you probably still have an old radio, cd player or computer or other electronic device which is still working after 10 years or so and still runs quite happily. Take for example radios in cars which may still be running after 20 years or so in an old car. That device like LEDs and power supplies contains solid state electronics and without the problem of moving parts is really quite durable.

Therefore, we expect your new LED light bulb to potentially offer you "Light for Life". 

4. Electronic Transformer Compatability - How can the 7W CREE LED Bulb work with my existing 50W halogen transformers?

This Commercial model LITE-PD-MTG2 comes with its own external LED driver/transformer so it is a complete replacement for your aging halogen electronic transformers so you do not need to worry about compatability. 

5. LED Light Flicker - I've pluged in my new 7W CREE LED MR16 Bulb but there is a flicker when turned on

You may have plugged in a non-dimmable LED bulb into a dimmable circuit or you may be experiencing mains voltage fluctuations. If you are running only 1 LED light bulb on a single dimmer circuit you may need to add an additional bulbs to assist with switching on the dimmer circuit since dimmers are traditionally used to dim at least a 30W or 50W light bulb rather than a single 7W or 10W LED light bulb. If you cannot connect additional LED light bulbs on the same circuit then another option is to use a Clipsal 32E2CFLD CFL low voltage dimmer.

6. LED Light Buzzing Noise - I've pluged in my new LED MR16 Bulb but there is a buzzing noise when it is turned on

The LED buzzing can occur due to instabilities in the dimmer and LED driver circuit. Try adjusting the dimming level or consider using one of our recommended dimming modules.