Nichia Develops 60 Lumen Per Watt White LED
- Thread starter jtr1962
- Start date
Stereodude
Not really a
I probably use my 4Sevens Quark AA^2 the most, but I have a love hate relationship with it. I like the beam pattern, shape, etc. But, most of the time the moonlight mode is too dim for what I'm trying to see, so I end up having to click twice to get to low mode which has enough light which is annoying.
Stereodude
Not really a
The what? A google search for dfuirbvem only find this thread.
ddrueding
Fixture
Indeed. Whatever caused him to say dfuirbvem caused him to lose half his post...
Pradeep
Storage? I am Storage!
Can I ask why you need a lightlight? Night terrors?
I was sure that SureFire used to have this:
http://www.surefire.com/SC1-Spares-Carrier
But with a very low wattage incandescent bulb. For multiple days of survival lighting.
Perhaps something like this:
http://www.surefire.com/lightLX2
47 hours at 15 lumens, plus you know it's not going to crap out on you in a time of need. And/or 200 lumens for 2 hours to see the polar bear trying to gut you in full glory. More dollars but you get what you pay for with flashlights IMHO.
I was sure that SureFire used to have this:
http://www.surefire.com/SC1-Spares-Carrier
But with a very low wattage incandescent bulb. For multiple days of survival lighting.
Perhaps something like this:
http://www.surefire.com/lightLX2
47 hours at 15 lumens, plus you know it's not going to crap out on you in a time of need. And/or 200 lumens for 2 hours to see the polar bear trying to gut you in full glory. More dollars but you get what you pay for with flashlights IMHO.
Stereodude
Not really a
I did not know that. Maybe I should get the AA model instead.
Not exactly, but I've been trapped in tents by lions, wildebeest and hippos. You never know what is out there and I don't like trying to move about in pure blackness. I want a general light so that I can find my TK11, etc.
I have enough focused LED flashlights. I was thinking that the Zebralight wider angle would be better for a large area and it could be aimed by rotation on the headband part.
udaman
Wannabe Storage Freak
- Joined
- Sep 20, 2006
- Messages
- 1,209
Nikkei Electronics Asia -- December 2009
Cover Story -- Part 1: Business
Low-Priced Products Shake the Market; New Makers Vie with Old, Intensifying Competition
http://techon.nikkeibp.co.jp/article/HONSHI/20091126/178024/
pt2 comes Dec. 30
(sorry didn't post lengthy article, you'll have to click on lick and read yourself
)
Cover Story -- Part 1: Business
Low-Priced Products Shake the Market; New Makers Vie with Old, Intensifying Competition
http://techon.nikkeibp.co.jp/article/HONSHI/20091126/178024/
pt2 comes Dec. 30
(sorry didn't post lengthy article, you'll have to click on lick and read yourself
)jtr1962
Storage? I am Storage!
Interesting info, although 4000 yen ( ~$40 US ) still might not be some people's idea of "low-priced" (although I think it's pretty reasonable for a screw-base LED lamp ). Also, nice to see that some LED screw-base lamps are exceeding CFL efficiency. Here's another lamp from Toshiba:
http://www.ledinside.com/Toshiba_20091001
93 lm/W in natural white, 69 lm/W in warm white. The natural white is roughly 50% more efficient than a CFL.
http://www.ledinside.com/Toshiba_20091001
93 lm/W in natural white, 69 lm/W in warm white. The natural white is roughly 50% more efficient than a CFL.
udaman
Wannabe Storage Freak
- Joined
- Sep 20, 2006
- Messages
- 1,209
Pt 2 :
Cheaper and Brighter: Innovations in Thermal Radiation, Chip Architecture and More
http://techon.nikkeibp.co.jp/article/HONSHI/20091126/178025/?P=1
http://techon.nikkeibp.co.jp/article/HONSHI/20091126/178025/?P=5
?
Cheaper and Brighter: Innovations in Thermal Radiation, Chip Architecture and More
http://techon.nikkeibp.co.jp/article/HONSHI/20091126/178025/?P=1
http://techon.nikkeibp.co.jp/article/HONSHI/20091126/178025/?P=5
That sounds great...but
^...will they ever get past 100lm/w & CRI 95, for a much lower price???The development of m-plane GaN substrate LEDs is under way at other companies, universities, etc, as well, but problems with poor productivity and high cost have been cited. Mitsubishi Chemical uses a relatively low-cost liquid-phase growth technique. The firm's Kawana revealed they hope to cut manufacturing cost to the level of blue LED chips by about 2015.
The company currently uses a conventional LED package, with a combination of blue LED and yellow phosphors (Fig 7). The next step will be to apply the firm's expertise in phosphors to combine red and green phosphors with the blue LED, creating an LED package with outstanding color characteristics. This type of package generally suffers from low emission efficiency, but the company hopes to boost that to 100lm/W by 2010 by enhancing the phosphors.
Alright jtr, when you get your hands on sample prototypes of these, I expect you to put them in my flashlights ASAP, how much longer do I have to wait for the 300lm/w version
?
ddrueding
Fixture
ddrueding
Fixture
Sorry to hear that.
Stereodude
Not really a
Don't feel too bad. He's got one killer conversion van.
Stereodude
Not really a
You never know... the view down by the river at night might be quite nice. :rabbit:
ddrueding
Fixture
It's an old Saturday Night Live skit. Not that funny....
I'm not in the business if that is what you meant.
ddrueding
Fixture
It isn't. Only that such activities are found by many to be fun, and I'm sorry you're missing out.
How old? I stopped watching after 1979 and then watched a few times in the late 80s and early 90s.
I did not mean to imply any personal involvement in the activities, and I thought it was odd that people think I'm involved in such business activities.Stereodude
Not really a
Late 90's I think. You can watch it for yourself. link
ddrueding
Fixture
I'm looking to buy LED Christmas Lights. Lots of them. I'm sure there is a significant gradient in quality and cost, but googling just shows page after page of yahoo and amazon stores. Can anyone here clue me in on what to look for? Where to get it cheap? I'll probably need to order about 128 strings in 3-5 colors each.
Thanks!
Thanks!
timwhit
Hairy Aussie
May I ask why?
ddrueding
Fixture
Doing the whole musical christmas lights thing at the office for next year.
Isn't that a little early or late, depending on how you view the situation?
Are there still good deals on 2009 holiday overstocks?
ddrueding
Fixture
Isn't that a little early or late, depending on how you view the situation?
I'm hoping that I can have it ready in time for next year. The additional electrical work will need to be permitted, so it should start soon. Programing all the channels will be an absolute nightmare.
That is my hope. I won't be needing them for another 6-8 months, but they will be a significant chunk of my budget, and this is probably the time to buy.
ddrueding
Fixture
I'm currently looking at HolidayLEDs' commercial series. They have some nice extra features and are currently 30% off.
ddrueding
Fixture
These at christmaslights.com are much cheaper per foot...might go that way.
ddrueding
Fixture
Ugh...disregard. I really wanted to use LEDs for their fast on/off time, low power consumption, and general geekiness, but the price is just too far off (triple or more). I'll need to retreat to the practical solution, I hate doing that.
ddrueding
Fixture
...make that a factor of 10...
What office would have such an elaborate set of lights, a display room? Why would you be doing the work? Is that an odd side job?
ddrueding
Fixture
This is for the main office at the company I work for. The building is fairly interesting architecturally, and we have our own road, along with lake, fountain, stream, etc. This will be a PR thing, and will likely only start with 256 channels and maybe 10,000 feet of lights. I plan on scaling it in the next few years to 1000+ channels. The coolest part about this installation versus the others out there is that since we own the road and have a large parking lot, you'll be inside the display.