I have bought a few Philips ET-S 15 LED drivers. I have seen on about 5 websites that for 240V 2-core cable in Australia the blue cable goes in the neutral and the brown in the live. On the 12V side I have the red terminal going to positive and the black terminal going to ground.
The driver is rated for 2-15W and my 1m long strip of LEDs (via a controller) draw about 7W (600mA) when I just plug in a cheapo 12V power supply I have.
I have tried 2 different 240V cables and 3 drivers of the same model. The connections are all touching the terminal metal and are all secure. And yes, the LEDs and controller work and are turned on. And yes, the 240 outlet is switched on!
I thought this would be child's play but it seems I'm missing something.
AC output? That would certainly explain why the output terminals are not labelled + and - !
I don't know if strips are designed to withstand -12V. If they are, they should at least light up, if not at full brightness, during the positive half of the cycle.
@bodkin77 have you re-tested the strip using your "cheapo" 12V PSU since connecting it to the new PSUs? Does the strip still work?
Damn. The unit is AC-AC? Well it's my first 240V experiment. At least I'm still alive. Yes my LEDs still work.
So please help me to find a 240V AC to 12V DC LED transformer that has SELV and certification 61347-2-13. I think I need constant voltage, not CC. Sorry for the delay to reply.
So here's a question. The transformer was clearly sold for use with leds, it's got "led" in the model number. Who needs a power supply for leds with an AC output? What kind of leds can make efficient use of AC? I suppose individual led "bulbs" like mr11 and mr14 might have bridge rectifiers inside.
Right! So this is a transformer designed for led bulbs that were in turn designed for transformers that were designed for incandescent bulbs. Plus ça change...