Led Light Blog Spot

Wireless light with WiTricity

2007-07-12T01:28:00.000-07:00

With wireless light this is a space to watch: wireless power transfer for two reasons.

One it is new but old of course just the way we like it. Its inventor Marin Soljacic - smiling in the middle - calls it WiTricity for wireless electricity. But the idea is coming all the way from Nicola Tesla (what doesn't these days :-) who envisioned a time when electricity would be transmitted via broadcast just like radio.

The team is positioned in the path between the coil that broadcasts power wirelessly and the receiver coil attached to the 60W light bulb.

Now it that bulb is a LED bulb, and the coil approximately 50 times smaller, you are onto something. It is just a matter of time. This is the other reason to watch this space.

Via The Washington Post
http://www.washingtonpost.com/wp-dyn/content/article/2007/06/07/AR2007060701547_2.html

LED bulbs brightness

2007-06-26T16:14:00.000-07:00

We all kind of know by now that LED bulbs last long. In fact that is the one thing manufacturers try to keep to. At the expense of other things like brightness. (And still some bulbs don't last.)

So here we go, I investigate this further.
All LEDs are very sensitive to even minor fluctuations in current.
My thinking is that because bulbs are built from many such LED units (with ever so slightly different qualities) they have to be under-driven to keep them last long. And that what most responsible manufacturers do. Problem is, this will affect brightness.

Lifetime is straightforward - you see when your LED dies. Brightness is a little murkier subject. There is candela, lumen etc. Luminous intensity itself is measured in various circles with various depth. Also LEDs are narrow beam "bare lights", so to compare them to compact fluorescent bulbs or to the now trendy long life light bulbs (incandescents) that are housed in a luminaire (or armature) doesn't compare apples with apples.

But let's check out others opinions.

cons (mostly)

Otherpower had a different position. But they recently reviewed it and them seem to be saying that on the whole they are not as bright as claimed.

Not surprisingly, Don Klipstein , the undisputed LED guru seems to be saying the same as he has been doing for some time now. He even calls screw in and other LED bulbs for incandescent replacement a "hype" for the most part.

Rob 'Linear' Arnold has a very thoughtful points about a catch 22 for household LED bulbs in the US: Underwriter laboratories (UL) doesn't see the need to list them, and surveyors doesn't see the need to approve them with UL listing. So there you go.

Pat Mullins is not convinced about the proper heat sinking of screw-in LED replacement bulbs. I tend to share hat opinion, I and haven't change it.

pros

Pual Matthews has a good point on the single color department. This he says in favor of LED "bulbs" since LEDs don't need filtering to create colors. And filters take a lot from brightness. Point taken.

Conclusion?

I still think secondary heat sinks (not just the aluminum plate in the junction) is needed for good brightness performance. And since the best of those is still for external flood light, I am going to assume that the rest is very promising, but in development for now.

Sponsor

My LED shop opens on fun-LED Side!

2007-06-26T16:05:00.000-07:00

Go check it out. Leddies LED light shop opens on fun-LED Side.
And there it steadily grows.

I chose Amazon to build it with (aStore) because it gives me good control over product selection. They have competitive pricing and they pull unreliable brands.

Didn't stuff my store just with anything. Built my own Categories / subcategories sturcture.

LED bulbs update is coming

2007-06-26T15:55:00.000-07:00

But this blog also has the purposes of parking information while rearranging fun-led-light my LED light guide. And have I been busy!

What keeps me very busy in my spare time is the full update of the site with style sheets (CSS.) I find it a pain in the neck that old tables constructed without styles are poorly handled by sheets when it comes to consistency. In particular, IExplorer seems to have it's own mind how to read the styling.

But enough of that.

Meanwhile, I am also slowly updating my info on LED light bulbs. Why you ask? It's because the information I am getting doesn't seem consistent and sometimes outright misleading. Forecasting the future is one thing. But it is badly needed to sort out stuff all the same.

Largest LED TV - See Video

2007-03-29T01:19:00.000-07:00

This reporter runs the length of the screen in 12 seconds.
The TV is a measly 11m by 66m large and could easily fit three (yes 3) tennis courts.
Manufactured by the talented (and somewhat mad) folks at Toshiba, Japan
Watch the picture in picture mode ...

Music Powered MP3 Lightcast

2007-03-05T16:59:00.000-08:00

Your very own psychedelic light show at home. Project on wall, ceiling, door or floor? No problem. Update: Discovery channel seemed to have pulled the link to this product of theirs. Why? It's a mystery. And not of the psychedelic sort. There are great reviews about the product.

Features include:

Light projector that syncs with your MP3 player or other audio
33 built LEDs (single color, not RGB)
Interchangeable mirror and lens
Different light patterns
Slow, medium, fast or flash; AND None, minimum, moderate, maximum mix modes
Wireless remote - also lights up

Via Redferret.

Rubiks Revolution - 6 new games in an old box

2007-03-05T16:05:00.000-08:00

I blog this here quickly in anticipation and frustration. Anticipation of a fun game that this second take on the cube is going to be. It is also a clever marketing assault.

The frustration? It is because the original cube was dear to me, I loved it. It was a modular revolution. This version is not quite the modular revolution I expect from the pioneers of LED games I have been predicting in my fun-led-light/games reports .

There is a clear intention though, and it is the only game so far that is officially treading a new and unbeaten path. However, practical problems are already showing. There is no obvious and clear navigation from the splash page, but the site actually offers you free stickers if you wore off yours in the heat of the game. It leads to TechnoSource, a US distributor for the game. Not a good sign ... ?

Clouds turn laser light to matter

2007-02-25T03:11:00.000-08:00

Though laser light comes from the excitemet of LED diodes in large part I can't imagine this for LED light happening any time soon though.

BBC NEWS | Science/Nature | Cool clouds turn light to matter

Then again, laser printers are being replaced by LED printers as we speak, so who knows ...

About LED tail light

2007-02-01T15:36:00.000-08:00

Thanks first of all go to the many visitors who posted their veiws - your feedback makes the whole thing worthwhile.
My most important pick out of all of them will be re automotive LED light - in particular the blinding effects of some tail-lights / brake lights.

I discussed this stuff in the Lightnetwork forum, and got some good vibe there.

LED aquarium and the seriously Half-silly

2007-01-10T23:28:00.002-08:00

Just add LED lighted rocks and presto, you'll have the silliest talk piece in town. On second thoughts: guess you'll get even without the LEDs. But you never know, do you just when overdo things ;)

Originally appearing under:

http://news.yahoo.com/photo/070110/
ids_photos_ts/ra3407782424.jpg

Leddie has a BIG dilemma

2006-06-17T21:23:00.000-07:00

My dilemma was that this blog is about LED light and although I think changing climate back is the big part of LEDs adoption, my site (and blog) is better off if I place it elsewhere.

So I created another blog -- ChangeClimateBack and reposted my dilemma there.
I also place all my previous posts related to that subject on that blog.

See you there

FunLEDLight SiteMap Added

2006-06-17T20:53:00.000-07:00

Uploaded a Fun Led Light, Site Search and Site Map to Fun-LED-Light.com for all of you Leddie fans.

UPDATE Update on this folks: I switched to using FreeFind, find it at FreeFind.com. The FireFox business turned out to be messy. Read on below...

Here's how I've done it:

First used FreeFind Sitemap feature, which is fairly rudimentary. Then, using it as a comprehensive link list - I built my own. I recommend you do this, possible regularly. But update your site map every time a new page added.

To me it was very useful. Already shows where I need to work on most. (Got carried away with Xmas tips...I know...)
And it is also a vey good way to show information overlap.

Outdated: How was it created? A neat little trick will make sure it is always updated. Simply used FireFox bookmarks and exported them into a html file. After that - easy done. Just upload with some edits and you're done.

Dawn simulator page are added to Fun LED Light

2006-05-27T04:18:00.000-07:00

Just added this brand new pages to the LED light therapy section of Fun-led-light:

Light THERAPY- Dawn Simulator

Rechargeable candles...the dos and the donts

2006-05-06T04:20:00.000-07:00

Check out the info you can't live without - the dos and donts you need to know when looking for a flameless candle.

Grab it at this rechargeable candle page.

Also added new link to fun-led-light's led candle page.

Updates to links...and a brand new articles page.

2006-03-24T17:19:00.000-08:00

Updates to links...
and a brand new articles page.

Here are the link updates to fun-led-light.com.

And here is the brand new articles page.

Latest patent - Flying LED display

2006-03-10T03:26:00.000-08:00

Brighter than plasma or LCD, no limit to viewing angle, paper thin.
And you though you made a bargain with your "cheap plasma"...

Flying LED display rotates 360 degrees
Go check it out here

Community for OLED/Pled-Displays/Monitors (Organic Light Emitting Diode)

2006-03-09T15:24:00.000-08:00

Hoooh, located the hottest OLED community on the Web from 'ze' German county...

Community for OLED/Pled-Displays/Monitors
Community for OLED/Pled-Displays/Monitors (Organic Light Emitting Diode)

Want to put this in conxt, no problem, visit and:
LEDLighten yourself

Cheers, gotta go, L.

As Promised...PartyStage updated

2006-02-20T14:43:00.000-08:00

PartyStage LED strobes and Kevin Bartlett.

As Promised...PartyStage updated

PartyStage was given great new info. Go and grab it. And on the way find out why Kevin Bartlett, the acclaimed musician is an example to behold in cross media creativity.
my updated PartyStage page.

Next:
1. More home lighting ideas. Is too much too little in fact?

Cheers, Gotta go...
Don't try this at home. Too much work. But someone has to Love it, and that's me - Leddie.

New finds and additions to Fun-Led-Light

2006-02-12T17:45:00.000-08:00

Hi folks! New finds and additions to the cult site fun-led-light.

This is just a quickie to let you know...
Homemaker Bliss has some great new suggestions. To Bulbology current new long life light bulb data added. The light emitting diodes page got a revamp. And the home page that my Top Drawer really also got some more helpful hints.

I also started to elaborate on my new house lighting concept. Fiberoptics is still to follow.

All in the ready to qualify as your best guide EVER on LED lights at home. Hey directories! All welcome.

Next:
1. More home lighting ideas. Is too much too little in fact?
2. PartyStage. Can we learn from disco lighting if we want great party lights? Betcha!

Cheers, Gotta go...
Don't try this at home. Too much work. But someone has to Love it, and that's me - Leddie.

An Air PURIFIER light(?!), but no box in sight.

2006-01-31T16:36:00.000-08:00

Friends and lovers of L E D light!

New update to Fun-Led-Light.com!

An Air Purifier light fixture...? Cant be!
O-zone Lite is a great find. If only I could find its box.
Leddie took it somewhere.
The fluorescent light air purifier.

Great LED flash light finds added!

2006-01-30T17:23:00.000-08:00

Friends and lovers of L E D light!

New update to Fun-Led-Light.com!

Amazing LED flash light finds added with cool reviews.
Outdoor gears that double as a party statement!
LED Flash in 2 OutdoorACT-s

Hi Ledlightenment Folks,

2006-01-28T15:51:00.000-08:00

Friends and lovers of L E D light!

Just want to let you know that updates are happening
to Fun-Led-Light.com - my brand new web site.

What's the site about?
Well, I call it a Niche Guide to Ledlightenment.
Find more on here:
LEDDIE'S LED Lighting Rules

Who is it written for?
Pull out my Top Drawer to find out who the site is written for:
Fun Led Light - TOPDRAWER

What is highly recommended?
I collect all my hairy invention tips here:
Fun Led Light - TopTIP TOP

Folks behind the site?
I co-write it with someone who can actually read - a Smart-Lighting-MAD green innovation consultant.