What do these LED driver symbols mean? How can they help make your LED install more reliable?
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- čas přidán 4. 07. 2020
- Understanding the symbols on an LED driver is the key to a safe and reliable led strip installation.
The symbols indicate if the LED driver can be used in ceiling voids or within the furniture. Learn about the importance of the Tc point and why the ENEC mark is more trusted than CE certification marks.
Gary weighs in with his knowledge of the double insulated symbol and the WEEE related crossed out wheeled bin symbol.
== AD ======================================
LED tape, drivers and connectors used in this series has been supplied by Osram.
Available from RS Components
www.anrdoezrs.net/links/92936...
============================================
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Presented by.
Gary Hayers - technical editor eFIXX
Gordon Routledge - technology editor eFIXX
#efixx #lighting #ledstrip - Věda a technologie
Actually the "M"-symbol stands for German "Möbel" = furniture.
Single M means: "Lamp suitable for mounting in/on furniture made of normally or hardly inflammable material."
Double M means: "Lamp suitable for mounting in/on furniture made of materials of unknown fire behaviour."
Thanks for the translation! and insight
How can I get one of your stickers ? Mark
Join in the fun in next weeks Livefeed and we’ll get you some mailed over.
@@efixx Awesomeness
Every Information you have provided is valuable.... really all these young apperntices should spend on these type video than playing Games....
They should 👍
Can you do a video on the difference between constant current and constant voltage drivers and how to select the lighting setup for each, not many uk videos explaining that on CZcams 👍
You need to select the driver that is appropriate to the LEDs you are using. Some LEDs are configured for constant current, but most LED tapes that can be cut to length are normally constant voltage
Gaz, you nailed it. Gordon done alright too.
Fantastic message (Gaz 😁) 👍
I would buy for replace my led driver , one with this parametres with 30 volts and 70watt . It s possible buy in your shop? Regards
Are you going to do a video on LED driver selection as part of this series?
Yes we are working on loads more LED content inc drivers and dimming
Quick question. Can a driver run happy enough with no load ?
For example - the driver connected directly to the mains and run the 12/24 v to a switch then to the strip
For areas like the bathrooms, where you could take a LV switch inside the bathroom zones ?
Or anther case a walk in wardrobe with individual door switches. So say 2 doors would take normally two switches two drivers and two strips. Could it be one transformer feeding the two switches which switch the two strips separate ? But the driver would always need to be powered on
Would it over heat ?
Would it wreck itself with no load ?
Some drivers I’ve hear pulsing with on load on them
My head tells me that it’s prob not a good job running a driver with no load.
It’ll will work but it’s not quite right
If there is no-load, the drivers (electronic) can detect this and normally just shut down and need a mains reset to restart.
Most drivers do not like hot switching on the output as it can damage the driver. any switching should be done on the mains side or via control lines like DALI or DSI
How do you know whether or not a driver is rated for installation under ceiling insulation? Is there a symbol to indicate that?
There used to be am F-Mark - and F in a triangle. This was removed from the standard a few years ago and is for luminaires. There is only a mark where the luminaire is NOT suitable for mounting on a flammable surface. There is a symbol for insulated ceiling,
EL means extra low and it is for voltage.
In this case it’s for use with Emergency Lighting central battery systems.
I have a valid question:
What is the legislation on RF interference levels?
Some LED drivers, being switch mode, can wipe out a nearby AM Radio (including a neighbouring property). They can also emit interference right up to the gHz region, so will interfere with Wi-Fi systems, as well as HF.
Being a veteran Radio Amateur, this interference concerns me greatly. Good quality genuine power supplies, contain common mode chokes and blocking capacitors, the fake Chinese ones don't have this filtering.
David G1ZQC.
Very valid point David. The number of times we switch on a a cheap electronic power supply and the workshop radio gets wiped out. The Osram products we are using in these videos are properly tested for EMC emissions. They also publish advice on installation with respect to cable lengths etc. We will take a closer look at this as we explore led drivers. - Thanks (Gordon)
Perhaps the cheap power supplies are telling you about your poor choice of workshop radio station....
Or our dodgy wiring ;-)
@@guffermeister NO not MY choice of power supply. All the switch mode things I build are screened and leads terminated with feed through caps to prevent interference. I have no control over my neighbours however. Other than reporting to Ofcom.
Please share for Dali system to
What does a triangle with an ‘F’ inside it mean?
It means it is suitble for mounting on a flammable surface, but it is not used now as they only need to be marked if they can't be mounted on such a surface
Dali = dimmable
The constant camera cuts were giving me nausea!!! 🤢
Would be nice if they were made to label the power factor in every LED. Came across LED'S from cheating china that had very low power factor.
CE - Chinese Export....
This is wrong! Please not write false comments on CZcams!
Actually he is right, CE stands for Chinese Export while "C E" (with a space) stands for the French transliteration of European Community.
Quick question. Can a driver run happy enough with no load ?
For example - the driver connected directly to the mains and run the 12/24 v to a switch then to the strip
For areas like the bathrooms, where you could take a LV switch inside the bathroom zones ?
Or anther case a walk in wardrobe with individual door switches. So say 2 doors would take normally two switches two drivers and two strips. Could it be one transformer feeding the two switches which switch the two strips separate ? But the driver would always need to be powered on
Would it over heat ?
Would it wreck itself with no load ?
Some drivers I’ve hear pulsing with on load on them
My head tells me that it’s prob not a good job running a driver with no load.
It’ll will work but it’s not quite right
A constant voltage driver can work with no load without problems. You can have switching on the secondary side. I’ve used the approach you describe in my own home. Usual disclaimer use quality kit with the right certification etc. For constant current drivers you shouldn’t switch on the secondary side - hope this helps - cheers Gordon*
@@efixx that was quick reply, Fancy working in my local wholesaler.