LED lamps and fixtures: Difference between revisions

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{{Menu_General_rules_of_electrical_installation_design}}  
{{Menu_General_rules_of_electrical_installation_design}}
See also "[[Lighting circuits]]" for more details


A lamp or luminaire with LED technology is powered by a driver:
A lamp or luminaire with LED technology is powered by a driver:
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* if separated : in that case it is necessary to take into account the power dissipated in the driver and the power indicated for one or several associated LED modules.
* if separated : in that case it is necessary to take into account the power dissipated in the driver and the power indicated for one or several associated LED modules.


This technology has a very short start-up time. On the other hand, the inrush current at the powering is generally very higher than for fluorescent lamp with electronic ballast.
This technology has a very short start-up time. On the other hand, the inrush current at the powering is generally much higher than for fluorescent lamp with electronic ballast.


'''Note:''' The power in Watts indicated on the LED module with a separated driver doesn’t include the power dissipated in the driver.
'''Note:''' The power in Watts indicated on the LED module with a separated driver doesn’t include the power dissipated in the driver.


{{tb-start|id=Tab1011|num=A9|title=Main characteristics of LED lamps & fixtures|cols=5}}
{| class="wikitable"
{| class="wikitable"
|-
|-
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! rowspan="2" | Power factor  
! rowspan="2" | Power factor  
! colspan="3" | Starting  
! colspan="3" | Starting  
! rowspan="2" | Luminous efficiency (lumens per watt)  
! rowspan="2" | Luminous efficiency (lumens/watt)  
! rowspan="2" | Average timelife  
! rowspan="2" | Average timelife (h)
! rowspan="2" | Utilization  
! rowspan="2" | Utilization  
|-
|-
! Inrush current Ip/In  
! Inrush current Ip/In  
! Inrush current time (microsec)
! Inrush current time  
! Full Time to start
! Full Time to start
|-
|-
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| > 0.9  
| > 0.9  
| Up to 250  
| Up to 250  
| < 250 microsec
| < 250 μs
| < 0.5 to 1 sec  
| < 0.5 to 1 sec  
| 100 to 140  
| 100 to 140  
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|  
|  
* All lighting applications in all domains (housing,commercial and industrial building, infrastructure)
* All lighting applications in all domains (housing,commercial and industrial building, infrastructure)
|-
|}
|}
'''''Fig. A8b:''''' ''Main characteristics of LED lamps & fixtures''

Latest revision as of 09:48, 22 June 2022

See also "Lighting circuits" for more details

A lamp or luminaire with LED technology is powered by a driver:

  • can be integrated into the bulb (tube or lamp for retrofit) : in this case refer to the power indicated on the lamp
  • if separated : in that case it is necessary to take into account the power dissipated in the driver and the power indicated for one or several associated LED modules.

This technology has a very short start-up time. On the other hand, the inrush current at the powering is generally much higher than for fluorescent lamp with electronic ballast.

Note: The power in Watts indicated on the LED module with a separated driver doesn’t include the power dissipated in the driver.

Fig. A9 – Main characteristics of LED lamps & fixtures
Power demand (W) at 230 V Power factor Starting Luminous efficiency (lumens/watt) Average timelife (h) Utilization
Inrush current Ip/In Inrush current time Full Time to start
3 to 400 W > 0.9 Up to 250 < 250 μs < 0.5 to 1 sec 100 to 140 20000 to 50000
  • All lighting applications in all domains (housing,commercial and industrial building, infrastructure)
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