LED Lights

[jeanlafete]

5050 LED's

I have been playing around with LED lighting for years now. I know the first ones were terrible very little and very blue light. I have been testing the newer bulbs using the 5050 LED chips. The light is a nice warm white without too much heat. Pulls 6 watts and has the light output of a 60 watt incandescent. Instant on with no flicker. I have 5 in a ceiling fan testing them out at this moment. Very bright, however the only downside is they don't dim very well.

[smita]

led light

hello everyone,

here is a site for led lighting product please check out this

Mod note
If you would like to advertise here please contact user name Jason.

[russ]

At present your friend is correct.

LED lamps are better for locations where a CFL or T5 isn't such as cold areas - a porch lamp for example.

Another great use for an LED is night lighting - where you only want adequate light to navigate by.

Soon as I manage to get our electrician here we are putting them along the entry walk/drive - 50 meters of uphill. It will be interesting to see how that works.

[jerld]

Yeah, when I was remodeling my home, I was thinking about installing some LED fixtures; my San Francisco electrician buddy was telling me they aren't nearly as good in almost all areas as the T5 or T8 fluorescents. The thermal degradation is significantly more in LEDs, T5s and T8s are more efficient and produce more lumens to the watts they use, and LEDs have a higher heat dissipation percentage that will drive up cooling cost in a building and possibly reduce the life of the fixtures. Also, the initial source cost is more to implement them, especially in larger commercial buildings.

[anern]

Moderator note - To advertise on the site contact user name Jason.

[Crumb]

there is a long article in Wired about LED lighting

http://www.wired.com/magazine/2011/08/ff_lightbulbs/

How about liquid filled thermal fluid LED bulbs ?

Mineral oil or glycol maybe. Neither of which you want spilled in the house.

This is Pepsi behind it, and something I did not know was that sugar water doesn't really conduct electricity from what I have just found. Maybe a clue.

http://jchemed.chem.wisc.edu/JCESoft/CCA/CCA1/R1MAIN/CD1R3310.HTM

I know sugar holds onto heat real well, this is why your chocolate lava cake from dominoes is still almost enough to burn you AFTER the drive home, and AFTER the pizza. (Tasty though.)

Heck of a lot better than the alternatives like firey oil, mercury, and stuff you don't want your cat eating.

[russ]

I feel the same way about the EU as you but the lamp change is a good thing.

In the US it has become a political football with the players changing sides of the argument for three votes and one 'atta boy'.

No reason to waste electricity for no reason whatsoever.

[Mike90250]

there is a long article in Wired about LED lighting

http://www.wired.com/magazine/2011/08/ff_lightbulbs/

How about liquid filled thermal fluid LED bulbs ?

[dogsbody]

Yup, unelected bureaucrats in Brussels tell us what is good for us regardless. Whilst you threw off the British yoke, hundreds of years ago we actually voted for it, (DOH) that is joining the EU. Which proves only one thing, you get the politicians you deserve, in your case George Bush

[russ]

The US took a different route on the incandescent lamps - The efficiency has to be improved on the most popular sizes. For a table please see -

http://www.americanlightingassoc.com/Lighting-Fundamentals/Light-Sources-Light-Bulbs/New-Incandescent-Light-Bulb-Requirements.aspx

[john p]

incandesant bulbs are virtually now unobtainable in Australia.. Which is not much of a problem. but there is no ban now or it seems any time soon to ban the old style fluro ballasts.. Electronic ballasts are still not as easily obtained from the big box hardware stores.

This was a reason a long time ago Sunking and myself had lots of arguments over the losses with tube fluros.. I assumed USA was like here and where I sometimes am in Philippines and mostly have old magnetic balasts . He assumed the rest of the world was like USA and had electronic ballasts..

What I think should be banned from the whole universe(and other universes) is the super wasteful 50w hallogen MR16s..

[john p]

The UK is meek and mild (well except for riots) its the other EU countries that wield the big dictatorship stick..

[Sunking]

By the way incandescent bulbs were banned in the EU a couple of years ago, for domestic use, so our choice are limited

So Big Brother tells you how much money you get and how to spend it huh?.

USA threw UK control under the buss over 200 years ago.

[dogsbody]

By the way incandescent bulbs were banned in the EU a couple of years ago, for domestic use, so our choice are limited

[russ]

My comments in bold - Russ

This is also a good idea for a boat at night. Tiny amounts of light can wipe out your night vision, and when you are standing watch this can break stuff and kill people. You generally use a red lamp for this purpose do you not?

This is where the LED has another advantage. They can be run at much less than their rating, for much less output, and last much longer than what they are rated for, with much less heat. It is all in the datasheets I linked. I was amazed. Manufacturers data sheets are always amazing. One has to be pasrt of the team that wrote it to know what they really mean.
---
I know a little more about CFL's - The money savings is in long runs with low cycles. On/Off cycles seem to matter more than the industry is willing to admit. The industry points out the effect switching them on and off has - at least if you go to the big boys - bargain bin lamps are not considered. This is true for any florescent lamp.

I have a few 12(ish) year old CFL's with many many hours of burntime on them - but only one cycle a day using a timer/photocell. 8 to 12 hours a night constant on for outdoor lighting at night. I would say there is an advantage with that.

As Mike pointed out, there are many types of lamps for many uses. The old incandescent will even be around (in the US anyways) for a good bit longer.