Here is a recent curve (2007) of the evolution of the luminous efficiency (in lumens / W) according to the bulb technology:
Too bad it lacks the LEDs (especially Luxeon or CREE) but we can see that the compact fluorescents are starting to stagnate: has the technology reached maturity in terms of performance?
It is an extract from this document https://www.econologie.com/telechargeme ... e-energie/ which has a lot of interesting figures, for example, I learned that in terms of energy consumption the discharge bulbs represented the equivalent of incandescent bulbs:
Please note: this does not mean that there are more economical bulbs than conventional ones for private individuals in France because public lighting is included in discharge bulbs.
Lighting: light output by bulb type
-
- Moderator
- posts: 79360
- Registration: 10/02/03, 14:06
- Location: Greenhouse planet
- x 11060
- chatelot16
- Econologue expert
- posts: 6960
- Registration: 11/11/07, 17:33
- Location: Angouleme
- x 264
an incandescent lamp does not have a constant output
it very strongly depends on the tension
in 230v 10 volts more increase the output and decrease the lifespan: there are people who have a 230v of the EDF too strong and who burn out the bulbs much too quickly
for allogenes a 12v 50w lamp for car headlight (long life and low efficiency) can become a 24v 200 w lamp for cinema projector: high efficiency but very short life
So you have to know what you want: looking for performance by reducing the lifespan is not necessarily good
it very strongly depends on the tension
in 230v 10 volts more increase the output and decrease the lifespan: there are people who have a 230v of the EDF too strong and who burn out the bulbs much too quickly
for allogenes a 12v 50w lamp for car headlight (long life and low efficiency) can become a 24v 200 w lamp for cinema projector: high efficiency but very short life
So you have to know what you want: looking for performance by reducing the lifespan is not necessarily good
0 x
-
- Moderator
- posts: 79360
- Registration: 10/02/03, 14:06
- Location: Greenhouse planet
- x 11060
Ah thank you for this remark but are you sure that it really increases the yield in Lumens / Watts?
Would you have a curve like: light output (in Lm / W) / nominal power (in W or%).
With nominal power from 0 to 400% (as your example)?
Would you have a curve like: light output (in Lm / W) / nominal power (in W or%).
With nominal power from 0 to 400% (as your example)?
0 x
Do a image search or an text search - Netiquette of forum
Re: Lighting: light output by type of bulb
Christophe wrote:
Too bad it lacks the LEDs (especially Luxeon or CREE) but we can see that the compact fluorescents are starting to stagnate: has the technology reached maturity in terms of performance?
For the boeotian that I am, I see above all that the fluorescent lights are very clearly above the incandescent and that both stagnate ! So I can buy neon without hesitation, there will be no more trend reversal or crossover!
Indeed, a pity that the LEDS are not there.
0 x
-
- Similar topics
- Replies
- views
- Last message
-
- 2 Replies
- 5026 views
-
Last message by izentrop
View the latest post
30/04/20, 09:27A subject posted in the forum : Electricity, electronics and IT Hi-Tech, Internet, DIY, lighting, materials and new
Who is online ?
Users browsing this forum : Majestic-12 [Bot] and 225 guests