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Switch Lighting’s New Liquid-Cooled LED A-Lamps?

Now, I know what you’re thinking – well, unless it’s hey, I wonder where I put the remote

Switch Lighting has come out with an absolutely beautiful series of lamps that are being tested right now in “several distinct hospitality properties.”  This thing is absolutely beautiful, as are Switch Lighting’s other LED A-lamp designs, holy crap – it’s got panache, it’s got beautiful design, and this cooling liquid inside the dome with the LEDs.  Oh, just check it out – this particular flavor of Switch lamp is the Switch75 (which is a 75W LED lamp, of course, and you can tell from its blue collar!)

Ok, this thing is pretty beautiful, to be sure!  I love the design; just alone, the design is fairly similar to most of the LED A-lamp replacements out there with regards to form.  Heat sink on the bottom, LED dome and some kind of diffuser or magnifier on top, but this one just looks different.  I love how the heat sink continues up into the LED dome, which is filled with a liquid of some sort – I am guessing a mineral oil or some kind of paraffin oil, possibly?  We’ll find out when Switch makes that public!  Something to note is how the LED structure wraps around and attaches to the heat sink – it’s almost as if they used such little material to get the most efficient heat dissipation possible.  If you work with LEDs, you know that heat that they generate is an enemy of their output and life.

More beautiful photos:

Here’s the Switch60 – you can tell it’s 60W because it’s got a red collar:

That thing is just sexy, there are no if’s, and’s, or but’s about it.  I originally saw this post at a great blog called Jetson Green – and I remembered that, wait a minute, somebody tried this before, I wrote about it!  Now, all things aside, the Switch Lighting lamps and the one I wrote about in 2009 are completely different lamps in every regard.  Check it out – this is the EternaLEDs Hydralux-4 liquid-cooled LED lamp.  It’s only 25W, it’s MUCH different than the Switch lamps, and it’s sitting now in my big box o’ lamps:

It’s just a different lamp, completely – fully glass, the liquid is similar to paraffin oil, and there is no heat sink.  It has a frosted top diffuser either formed or blasted into the envelope of the lamp around the LED element.  The only differences are the liquid and the LED parts, really, but I think it is important to see an early version of the liquid-cooled LED technology.  These lamps are no longer offered at EternaLEDs; I did find an old blog post of theirs though that talks a bit about the old Hydralux-4.  It was also featured in a 2009 issue of Popular Mechanics as one of the Top 12 Must-Have Products.  Crazy, huh?

I for one am pretty excited to see how Switch does liquid-cooled LED lamps.  The nerd in me wants to know info on output and efficacy!  Here’s where I kick and scream and beat my fists until no one gives me the info I need.

The Switch LED A-Lamp – Definitely the Most Unique LED A-Lamp I’ve Seen!

You know, for the most part, I’ve been pretty unimpressed with the designs of the A-lamp “replacement” LED lamps.  I’m not shooting my mouth off saying I have a much better design, but there is something about that diffused white globe atop the heat sink, which looks like a handful of fins.  I actually kinda like the heat sink design, the fins are neat.  If you’ve held one of those suckers when it’s been on for a while, that heat sink is HOT!  Not Jennifer Lopez hot, we’re talking George Bush’s ears while telling the nation that Iraq had weapons of mass destruction hot.  That is HOT!

I just turned onto a new design for the LED A-lamp from a company called the Switch Bulb Company – they are promoting an LED replacement A-lamp with a high CRI, a warm feel, and a pretty decent output.  The difference?  A lens-type “ball” atop the heat sink that shows each element and the heat dissipation gear inside.  It’s actually quite a beautiful design!  Check it out:

Pretty interesting design, huh!  Switch is offering three models right now – the Switch40, Switch60 (PDF spec link), and Switch75 (PDF spec link).  As you can probably guess, these 40, 60, 75 ratings are the replacement quantity of light per power consumption hint-hint to sell the “incandescent replacement” idea.  The Switch40 doesn’t have specifications online yet, but the Switch60 claims 830 lumens at 13 watts, and the Switch75 claims 1150 lumens at 16 watts.  Pretty decent!  That 830 lumens figure is pretty close to an 850 lumen incandescent at 60 watts in terms of efficacy – if you look at an 850 lumen 60W incandescent, the efficacy is about 14.2 lm/W, but the Switch lamp is putting out nearly the same output at 13W, giving a near 64% efficacy!

Switch is showing two general colors – a “warm” at around 2750 Kelvin, and a “Neutral” colored lamp, more than likely a bit higher in color temperature. I’ve requested to get my hands on one of these, let’s see if that happens or not!  I would love to see one up close!

Check out this quick little video:

Sharp Says “Here World, Have Nine Models of LED A-Lamps”

Electronics manufacturer Sharp has released a series of nine LED A-type lamps for the world to chew on – color temperatures from warm white to daylight (so that’s eight of the models) and a revolutionary color-changing remote controlled lamp that is controllable from warm white to daylight.

That’s pretty cool – my first question is obviously output, and Sharp has the daylight white model at around 560 lumens.  If you compare that to a 60w incandescent at 850 lumens it’s 35% less output, but it’s also got a lifetime of 40,000 hours (about 40 times the lifespan of an incandescent) and uses a minute fraction of the power.

Cost is obviously a factor, right?  The fixed color temperature sources are retailing around the $40 dollar mark ($42-$44) and the color changing model runs around $82 bucks.  Now theoretically if you were to use this six hours a day each day of the week, every week for a year, you’d use 2016 hours of the lamp’s life.  If you divide that into 40,000 hours of lamplife, this lamp will last you about 20 years.  If you compare power consumption costs with a 60w incandescent, there’s a clear winner, the LED source at 112 lumens per watt compared to the incandescent efficacy of around 14 lumens per watt.

Well, we will see, won’t we?  I do love these innovations!

About the adjustable color temperature and intensity source – from the press release from Sharp:

The model DL-L60AV LED Lamp features an Adjustable Color Function that enables users to change the color of the white light emitted from the lamp using an accessory remote control, an industry first for an LED lamp*1. Users can select from seven different shades of white ranging from a pleasing warm white to a cooler daylight white to match the weather, the season, time of day, purpose, or other preferences. This model also features a built-in Dimmer Function to adjust brightness. Together, these features allow users to select the illumination they like best to complement a diverse range of interior settings by using a single remote control to change the color and brightness of the light.

In addition, the model DL-L601N LED Lamp delivers a brightness of 560 lumens, among the highest in the industry for LED lamps*1 having nearly the same size and shape as ordinary incandescent lamps.

Check out some images:

sharp led

sharp led a lamp

led-lightbulb-tunable-color-japan03

Thanks Treehugger and DVICE!