The Geobulb is a 8 watt LED light that replaces a 60 watt incandescent bulb. It generates 800 lumens of light to be exact — either warm white light or cool white. This bulb has a sleeker design than some of the LED lights I’ve seen — check out that aesthetically pleasing heat sink.
The Geobulb lasts 40 times longer than conventional incandescent bulbs and 10 times longer than compact fluorescent. LED bulbs like this have the advantage of being able to be turned off and on quickly, and being able to withstand cold temperatures. It sells for $120 which, for an enthusiast like myself, is a reasonable price for a ultrarefficient light that will last 10 years or more. It’s available from C. Crane and Computer Gear.
10 responses so far ↓
1 coal_burner // Jun 18, 2008 at 8:52 am
Are they dim-able? all of my non-dimming fixtures already have fluorescent bulbs in them. I have almost a dozen places where i could use good energy efficient and totally dim-able bulbs.
2 Aaron Dalton // Jun 18, 2008 at 10:21 am
Love the fact that this product elevates LED bulbs to works of art!
Now if only the price could drop by 50-75%, we’d have a lighting revolution on our hands…
FYI, another LED bulb that fits conventional light sockets is the EvoLux from EarthLED. Not as beautiful, but quite a bit more affordable (~$80).
I hope to review the product in a few weeks, but meanwhile here’s a link to the EarthLED site:
http://www.earthled.com/evolux-led-light-bulb.html
- Aaron Dalton, 1GreenProduct.com
3 Ari Herzog // Jun 18, 2008 at 12:28 pm
Until the price drops for a more affordable residential use, I’ll stick to CFL bulbs.
I heard LED bulbs are better for outdoor use, no?
4 Mical // Jun 18, 2008 at 2:16 pm
http://www.ledwaves.com/product.php?productid=19636&cat=413&page=1
This bulb replaces a 50W incandescent and is only $49.95. Who says the revolution isn’t here now?
5 itai // Jun 20, 2008 at 7:51 am
one thing I don’t understand - if LEDs are supposed to be very efficient because they don’t turn the electricity into heat - how come they need a heatsink?
6 Eri // Jun 21, 2008 at 7:15 am
I’m looking forward to using them in my household. It is still expensive to pay for them up front. But predictions say that prices will go down. Something good to look forward to.
7 Archena // Jun 21, 2008 at 7:42 am
LEDs don’t produce infrared so they don’t radiate heat as an incandescent bulb does. They do produce heat, however, (because they aren’t 100% efficient) and that heat has to be radiated away via a heat sink.
That’s my understanding anyway.
8 Sol // Jun 23, 2008 at 11:35 pm
It’s a little tricky comparing all these LED bulbs fairly because each manufacturer has its own understanding of what a standard incandescent bulb produces in terms of lumens.
Starting with the watts/lumens table from the following web site, I decided to compare the numerous LED bulbs mentioned on the metaefficent web site:
http://en.wikipedia.org/wiki/Incandescent_light_bulb
Here’s what I got:
Geobulb 800 lumens at 8 Watts ($120) (55 Watt incandescent; 14 Watt CFL equivalent) ( http://www.ccrane.com/lights/led-light-bulbs/geobulb-led-light-bulb.aspx )
EarthLed’s Evolux 900 lumens at 13 Watts ($80) (60 Watt Incandescent; 15 Watt CFL equivalent) ( http://www.earthled.com/evolux-led-light-bulb.html )
EcoLED 315 lumens at 7 Watts ($80) (32 Watt incandescent; 8 Watt CFL equivalent) ( http://www.betterlifegoods.com/ProductDetails.asp?ProductCode=LED%2DCAT21416 )
LED PAR-20 500 lumens at 9 Watts ($50) (40 Watt incandescent; 10 Watt CFL equivalent) ( http://www.ledwaves.com/product.php?productid=19636&cat=413&page=1 )
This would seem to make the Geobulb the most efficient at 100 lumens per Watt (but also the most expensive).
Feel free to correct or add to this analysis.
9 John B // Jun 26, 2008 at 2:40 pm
My understanding is that the AC to DC transformer generates heat and wastes power and adds costs. It would be nice if the bulbs and the transformers were separated and a standard DC socket was developed! (don’t get me started on DC power losses its off topic and not relevant. You can do conversion at the socket or down the hall, its up to you with DC sockets.)
One should also factor in peak Copper (already reached) into all these matters as well. Interesting is that LEDs don’t have copper leads on them…
LEDs produce heat; esp the bright ones. They do NOT handle power spikes or heat as well and need protection.
How about “green” molded plastic for these things? are they green?
10 EfficiencySeeker // Aug 4, 2008 at 3:48 am
Here is a new technology that seems to be able to compete with (or beats according to its maker) LED tech.
http://gizmodo.com/5032387/esl-bulbs-are-better-than-cfls-and-leds-says-company
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