LED lamps and fixtures: Difference between revisions
From Electrical Installation Guide
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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 |
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