Hi everybody,
Well I want to get started in the leds to see and it offers great opportunity I think.
But good beginner total so I'm looking for some confirmations from your expert heads
I think (try would be more appropriate ) make me a montage for my kitchen with 10 luxons 3W (3.2V ~ 3.6V, 700mA) in parallel mount with a recovered power supply of Xbox 360 (12V, 16.5A)
1 / For the power needed for the transformer I have to add the power of each led? (in my case 10 * 0,7 = 7A)
2 / I am looking for confirmation of my calculations
For 1 only resistance for mounting:
R=(12-3.2)/(10*0.7)=1.26 ohms
P = (12-3.2) * 7 = 61.6W
For 1 resistance by LEDs:
R=(12-3.2)/(1*0.7)=12.6 ohms
P = (12-3.2) * = 0.7 6.16W
Are they good?
3 / If my calculations are good, does it mean that I consume about 2 times what I produce light (61.6W for 30W lighting)?
4 / Apparently doing the calculations again we have a transformer delivering a voltage close to those needed by the LEDs less it heats and better and performance?
5 / Latest
With all the chargers of mobile phone that we have with us, can we reuse them to power LED fixtures?
Thank you in advance for your assistance
Need help before embarking on the adventure LEDs ???
-
- I learn econologic
- posts: 10
- Registration: 15/05/06, 20:25
comfort and LED ecology
I did some montages at home. Very quickly my wife removed them to me. The white and raw light is ugly to burst. She does not want it.
Compromise; I mix LEDs with normal spots
I therefore reduce the consumption of 100 w (5 spots) to 64 W (3 spots, 2 LED 2 W) approximately for lighting slightly less bright and endurable in color.
Compromise; I mix LEDs with normal spots
I therefore reduce the consumption of 100 w (5 spots) to 64 W (3 spots, 2 LED 2 W) approximately for lighting slightly less bright and endurable in color.
0 x
Re: Need help before embarking on the adventure leds ??
boblebricoleur wrote:Hi everybody,
Well I want to get started in the leds to see and it offers great opportunity I think.
But good beginner total so I'm looking for some confirmation from your expert heads: cheesy:
I think (try would be more appropriate: Mrgreen:) make a montage for my kitchen with 10 luxuryons 3W (3.2V ~ 3.6V, 700mA) parallel mounting with a power supply of Xbox 360 (12V, 16.5A)
1) I do not know anything about electronics.
2) Quit to make montages, I will do batches of 3 leds in series (nominal voltage close to 12), then I will mount for example 4 lots in parallel.
So, I would need very little resistance to adjust between 3 x 3,5 V = 10,5 V and 12 V your transformer. Check that it is stable to 12 V even with low amperage (because I imagine that your Xbox consumed more!)
With less resistance, you will "dissipate" less electricity into heat.
That the electronic people correct me if I said bullshit. [/ Code]
0 x
-
- I learn econologic
- posts: 10
- Registration: 15/05/06, 20:25
Thank you for your information.
Since I posted this topic, I did my homework so it's okay now I understand the parallel and serial editing.
For the moment I made qlq montages with leds classics by using a power supply for hard disk pc that I had.
Regarding leds 3 w (700ma), I have only received one to date, it works pretty well but well after one hour I slammed the power supply (2A) all this while using a driver at leds. I suspect the power supply to be rotten
Since I posted this topic, I did my homework so it's okay now I understand the parallel and serial editing.
For the moment I made qlq montages with leds classics by using a power supply for hard disk pc that I had.
Regarding leds 3 w (700ma), I have only received one to date, it works pretty well but well after one hour I slammed the power supply (2A) all this while using a driver at leds. I suspect the power supply to be rotten
0 x
-
- Moderator
- posts: 79128
- Registration: 10/02/03, 14:06
- Location: Greenhouse planet
- x 10975
To complete your discovery of led, you can read this comparison fluo / led:
https://www.econologie.com/forums/test-compa ... t6649.html
https://www.econologie.com/forums/test-compa ... t6649.html
0 x
Do a image search or an text search - Netiquette of forum
-
- Similar topics
- Replies
- views
- Last message
-
- 21 Replies
- 24598 views
-
Last message by boulouloubi
View the latest post
15/01/13, 08:02A subject posted in the forum : Electricity, electronics and IT Hi-Tech, Internet, DIY, lighting, materials and new
-
- 9 Replies
- 5943 views
-
Last message by Christophe
View the latest post
16/03/12, 09:35A subject posted in the forum : Electricity, electronics and IT Hi-Tech, Internet, DIY, lighting, materials and new
-
- 19 Replies
- 11023 views
-
Last message by Alain G
View the latest post
22/04/09, 02:45A subject posted in the forum : Electricity, electronics and IT Hi-Tech, Internet, DIY, lighting, materials and new
-
- 15 Replies
- 13445 views
-
Last message by Exceed
View the latest post
28/05/07, 23:28A subject posted in the forum : Electricity, electronics and IT Hi-Tech, Internet, DIY, lighting, materials and new
-
- 34 Replies
- 31212 views
-
Last message by jjb26
View the latest post
08/08/08, 17:52A subject posted in the forum : Electricity, electronics and IT Hi-Tech, Internet, DIY, lighting, materials and new
Who is online ?
Users browsing this forum : Google Adsense [Bot] and 128 guests