EarthLED releases a new consumer LED light bulb

by Cristina Foung

My favorite green product of the week: the EarthLED ZetaLux 7 Watt LED

What is it?
The EarthLED ZetaLux is a 7 watt LED light bulb. With a standard medium base, the bulb is a replacement for any incandescent light bulb. EarthLED estimates that it will cost as little as $2.00 to run the bulb for 8 hours every day for a year.

Why is it better?
The ZetaLux uses 1/10th the amount of energy and produces roughly the same amount of light as a 50-60 watt light bulb. It has a direct light path (which in some ways takes a little getting used to) but according to EarthLED, that means the bulb has a 95% luminary efficiency (the bulb does not direct any light toward the light fixture).

I’ve been using the ZetaLux for a week now, and it provides quite a bit of bright light in a table lamp. It’s completely quiet (which was a complaint some folks had with the EarthLED EvoLux) and although the “warm white” bulb produces light that is not as warm as an incandescent, the quality of the light is quite nice.

Where can you find it?
You can order the ZetaLux directly from EarthLED for $49.99 in either warm or cool white.


Boca Raton, FL, November 18, 2008 — Advanced Lumonics, LLC, an early leader in the direct replacement LED light bulb market through its consumer oriented EarthLED brand announces its latest product, the EarthLED ZetaLux.Following on the success of the EvoLux launch earlier this year, the EarthLED ZetaLux LED light bulb offers a price/performance ratio unmatched in the industry. The ZetaLux only consumes 7 watts yet offers performance comparable to a 50-60 watt light bulb. With a price of under $50 USD, the ZetaLux offers an unprecedented payback time of just over 2 years when operated 8 hours per day.

ZetaLux is built upon the latest LED Engine from CREE allowing for amazing efficiency, high output and a new benchmark in Color Rendering Index (CRI) performance. CRI is a a good way to determine the quality of light and its faithfulness to render colors correctly, EvoLux features a a CRI of 75 for cool white and 80 for Warm White making them exceptional for LED Light Bulbs.

The ZetaLux has been designed to the most exacting standards of any LED light bulb currently on the market. From its oversized aluminum heat sink to its flame retardant plastic, to its shatter proof lens, the ZetaLux is built to perform safely and efficiently for over 50,000 hours. The ZetaLux’s rugged design also allows it to perform under the harshest conditions including frigid -50 degree frost all the way up to scorching 180 degree heat with 95% humidity.

Advanced Lumonics is also announcing enhanced versions of their successful EvoLux line. All EvoLux bulbs now feature lumen outputs exceeding 1000 Lumens along with a higher CRI and even greater efficiency. These enhancements further cement the position of EvoLux as the most advanced direct replacement LED light bulb on the market today.

The ZetaLux along with the new enhanced EvoLux will be among the first direct replacement LED light bulbs to achieve UL certification later this year along with compliance with new DOE EnergyStar standards for LED lighting in 2009.

Both ZetaLux and enhanced EvoLux are available today from The EarthLED Store and Advanced Lumonics distribution partners.

The new ZetaLux and enhanced EvoLux join a fresh new lineup of EarthLED LED Lighting products for 2009 including:

TriSpectra 3 – The World’s Most Powerful LED Based MR-16 Solution
DirectLED-HL – The First Direct LED Replacement for G4 Halogen Lamps
DirectLED-PL – The First Direct LED Replacement for PL Fluorescent Lamps
DesignoLux – LEDs Designed Specifically for Decorative Lighting
GrowLED – A Comprehensive Range of Affordable LED Grow Lights

For additional information on ZetaLux, EvoLux or other EarthLED LED Light Bulbs please visit or call 1-877-855-1625.

About Advanced Lumonics, LLC

Boca Raton based Advanced Lumonics, LLC is an early leader in the direct replacement and professional Solid State Lighting (SSL) market. Through their popular EarthLED brand, Advanced Lumonics has rapidly increased awareness of LED lighting as a true alternative to CFL and Incandescents in the consumer marketplace and has become a leader in this space.

Besides her green products column on Cleantech Blog, Cristina is a passionate advocate for green living at the Green Home Huddle at, which focuses on electric cars, organic personal care, and other green products.

Go Toward The (LED) Light

by Cristina Foung

My favorite green product of the week: the EarthLED EvoLux S LED light bulb

What is it?
A while back, I wrote about the EarthLED CL-3, but that was before I knew about the EvoLux S. Let me tell you…this is quite a bulb. Here are the basics: it’s a 13-watt LED light bulb that puts out 900 lumens. It uses an advanced CREE 13 watt light engine and has a standard base, so it can fit pretty much anywhere a standard incandescent (or CFL) can.

Why is it better?
Well, for the amount of light it puts out, it uses far less electricity than incandescent or CFL bulbs use (EarthLED says that the EvoLux S is comparable to a 100-watt incandescent). So clearly in terms of energy efficiency, it wins hands down.

Based on a formula to calculate the lifetime cost of a light bulb, a 100-watt incandescent light bulb which puts out 950 lumens and runs for 1,500 hours will cost you about $11.04 per megalumen-hour. Although the upfront cost of LED light bulbs is much higher, turns out for the EarthLED EvoLux S, you’ll spend only $3.22 per megalumen-hour (assuming $0.10/kWh). EarthLED reports that it only costs $5.70 to run an EvoLux S for a year.

And finally, it’s just a good light bulb. I’ve had mine for about a week – the light is not as diffuse as an incandescent or CFL but it’s amazingly bright. Doing the touch test, an incandescent got hot within 5 minutes of having the lamp on. The CFL warmed within about 7 minutes. The LED? Even after having it on for an hour, I could put my hand on it and it was cool.

The only drawbacks of note that I’ve experienced (and that others have confirmed) are a) light diffusion (I think the bulb would be a little better suited in an overhead downlight rather than in a bedside table lamp); and b) you can hear the fan. It’s pretty quiet. But if you’re reading by it, you can hear it hum. Overall, it’s a great option for a bright LED light bulb that’s available now.

Where can you find it?
You can get your very own EvoLux S in warm or cool white for a bargain price of $79.99 (ouch, I know, but think of the lifetime savings) from the EarthLED online store.

Besides her green products column on Cleantech Blog, Cristina is a passionate advocate for green living at the Green Home Huddle at, which focuses on electric cars, energy efficient appliances, and other green products.

LED Your Light Shine

by Cristina Foung

My favorite green product of the week: EarthLED CL-3 LED light bulb

What is it?
How many Cleantechbloggers does it take to change a light bulb? If it’s changing an incandescent to an LED, only one – because we all know LEDs are the way of the future. The EarthLED CL-3 is a 3-watt LED replacement bulb, which is equivalent to a 45-watt incandescent bulb. It can be used anywhere you use a traditional bulb – even under lampshades (but then you can’t quite as easily make them conversation pieces).

Why is it better?
The CL-3 is not only energy efficient, it also has a life span of more than 50,000 hours. According to EarthLED, that means you’ll have an 11 year relationship with your LED (while in that same time frame, you’d have meaningless flings with at least 50 incandescent bulbs).

Of course, the initial cost of an LED is much higher than for a compact fluorescent light bulb or an incandescent. But have no fear. Over the LED’s entire life, it will only cost you $35, including the cost of the bulb itself and operational expenses. EarthLED compares that to “a traditional fixture using an incandescent bulb [that] will cost nearly $230.” And those costs don’t even take the positive environmental externalities into account like the carbon dioxide saved from all that unused electricity!

These LEDs are also RoHS (Restriction of Hazardous Substances Directive) compliant, so they don’t have any hazardous materials you need to worry about. And because they last so long, you send far less waste to the landfill.

Where can you find it?
You can buy CL-3 bulbs and a variety of other LEDs from the EarthLED store. They are available in warm white and cool white. One CL-3 costs $29.99.

But here’s a little shameless self-promotion. The Green Home Huddle just launched a contest running through Earth Day in which you could win a CL-3 (plus a bunch of other cool stuff) just for writing some green product reviews or wiki articles.

Besides her green products column on Cleantech Blog, Cristina is a passionate advocate for green living at the Green Home Huddle at, which focuses on electric cars, energy efficient appliances, and other green products.