Hello,
This is not to advertise, but we can make parallels with other brands and design his little personal system by taking this as a basis for information:
http://www.osram.be/fr/prof/documentati ... es/LED.pdf
It remains to be found the retail salesmen ....
@+
LED lamp, a link to complete systems (: o
-
- I posted 500 messages!
- posts: 749
- Registration: 31/03/04, 07:37
- Location: Brussels
LED lamp, a link to complete systems (: o
Last edited by Bibiphoque the 20 / 03 / 06, 08: 42, 1 edited once.
0 x
This is not because we always said that it is impossible that we should not try
In some applications, I have used extra bright white leds, which consume only about 20mA. As the threshold voltage of this type of LED is between 2 and 3V (I have the exact value in mind), it means that we could put between 75 and 100 series 220V.
AC power level would make 220V x 0.02mA = 4.4W. On the other hand it would be necessary to calculate the brightness, but in my opinion it would be terrible, because this type of led, it is impossible to look in the face so it shines strong. On the other hand, they are very directional (10-16 °), but since we have a hundred LEDs, we could arrange them judiciously to light 360 ° towards the ground.
By cons, I dare not even imagine the price at which it would come back so these leds are expensive!
AC power level would make 220V x 0.02mA = 4.4W. On the other hand it would be necessary to calculate the brightness, but in my opinion it would be terrible, because this type of led, it is impossible to look in the face so it shines strong. On the other hand, they are very directional (10-16 °), but since we have a hundred LEDs, we could arrange them judiciously to light 360 ° towards the ground.
By cons, I dare not even imagine the price at which it would come back so these leds are expensive!
0 x
-
- Moderator
- posts: 79117
- Registration: 10/02/03, 14:06
- Location: Greenhouse planet
- x 10972
abyssin3 wrote:According to the information that I could have, a priori, on 24 leds lamps, the conso is ~ 1.5W for 60 lumen. Number of classic bulbs make 100W, and low conso bulbs make 15W ...
As for their life, it is close to 100.000 hours ...
Corrigendum: low conso bulbs make 15W, but for ~ 750 lumens ...
Here are the different brightness per watt of the most common bulbs: https://www.econologie.com/ampoules-a-ec ... s-552.html
All that's missing is the 55 lumens / watts sodium lamps (unusable at home)
So starting from the data of the site we have respectively:
1,5 W led = 150 lumens (from where a big difference with your figure ... where do you go from it?)
100 W tungsten = 1300 lumens
40 W tungsten = 520 lumens
15 W fluocompactes = 900 lumens
We can clearly see that a high number of LEDs is therefore needed to obtain "decent" lighting (below 50 Leds or 300 lumens, it is still decorative except for bedside or desk lamps ... and more ... )
Edit: figures to constraster according to the measurements made here: https://www.econologie.com/forums/ampoules-a ... t2118.html
Last edited by Christophe the 29 / 01 / 15, 19: 05, 2 edited once.
0 x
Do a image search or an text search - Netiquette of forum
-
- Moderator
- posts: 79117
- Registration: 10/02/03, 14:06
- Location: Greenhouse planet
- x 10972
nlc wrote:that means we could put 75 and 100 in series on the 220V.
That's what I do not understand: there are ampoules 230 V (E27 base without transformer) with 30, 20 see 15 Leds ... so ??
0 x
Do a image search or an text search - Netiquette of forum
-
- I posted 500 messages!
- posts: 749
- Registration: 31/03/04, 07:37
- Location: Brussels
Hello,
Actually, there is a limitation in electronic current, that's why the lamps / led 12V "ready for use" do not work with a conventional switching power supply, they need either a feromangetic transformer, a specialized power supply (see Legoled on the net, for example)
@+
Actually, there is a limitation in electronic current, that's why the lamps / led 12V "ready for use" do not work with a conventional switching power supply, they need either a feromangetic transformer, a specialized power supply (see Legoled on the net, for example)
@+
0 x
This is not because we always said that it is impossible that we should not try
Hi everybody
content with your subject
I've already talked about this about another forum Here's my personal experience, I'm going to be able to put my passion and so I'm going to make my lighting of all the outdoor pool and other trees with my projects to leds
of several models
a 5 and 4 colors with some 4040, 555 and more and potar
the luniness of each random color so millions sde conbinaisons that for my cascade which represents a volcano of more possibility to block a color with the desired value or all therefore manual or auto
900 euros on some quote, personal being 50 and 100 euros and already well
other more simple white, green, red, orcre, blue, white which are very good for the vegetation
projo to 50, 100, 200, leds and more for some exeption
as I say on the other forum as my crep ext is finished approx 1 months
I restart the
cad, the oscilloscope and on the way to the component
I have stock for xxxxxxxxxxxxxxxxxx projos
apart from the LEDs that I order before for panels temperature hours not 10000 so I know or have the right price
I do the double-sided varnished artwork if needed and first proto
and I'll let you know for those interested can contact me
I speak a little about
http://www.eauplaisir.com/annuaire/forums/index.php
I also have my solar panels to do for the pool and ECS sanitary, hard drive
but I will find the time because I want my pool lighting OK for this summer
more if a person who knows the electronics well and who is the corner (below perpignan) it save time
I have all the hardware feed, oscilo, digital, drill, tray to burn and everything else even I have left 10 liter perclo I do my chem and mylar on eagle or orcad
@ + friends
content with your subject
I've already talked about this about another forum Here's my personal experience, I'm going to be able to put my passion and so I'm going to make my lighting of all the outdoor pool and other trees with my projects to leds
of several models
a 5 and 4 colors with some 4040, 555 and more and potar
the luniness of each random color so millions sde conbinaisons that for my cascade which represents a volcano of more possibility to block a color with the desired value or all therefore manual or auto
900 euros on some quote, personal being 50 and 100 euros and already well
other more simple white, green, red, orcre, blue, white which are very good for the vegetation
projo to 50, 100, 200, leds and more for some exeption
as I say on the other forum as my crep ext is finished approx 1 months
I restart the
cad, the oscilloscope and on the way to the component
I have stock for xxxxxxxxxxxxxxxxxx projos
apart from the LEDs that I order before for panels temperature hours not 10000 so I know or have the right price
I do the double-sided varnished artwork if needed and first proto
and I'll let you know for those interested can contact me
I speak a little about
http://www.eauplaisir.com/annuaire/forums/index.php
I also have my solar panels to do for the pool and ECS sanitary, hard drive
but I will find the time because I want my pool lighting OK for this summer
more if a person who knows the electronics well and who is the corner (below perpignan) it save time
I have all the hardware feed, oscilo, digital, drill, tray to burn and everything else even I have left 10 liter perclo I do my chem and mylar on eagle or orcad
@ + friends
Last edited by lelectron the 20 / 03 / 06, 18: 39, 1 edited once.
0 x
Back to "Climate Change: CO2, warming, greenhouse effect ..."
Who is online ?
Users browsing this forum : No registered users and 125 guests