Each lighting modules should contains the following
convert circuit 230vAC to 12v/5v DC
array 18 LEDS / Array of 6 leds *3 parallel rows
Tpetar:
I have not brought anything so far. I am planing to use white LEDs. Yes i am looking for transformer less circuit, but my worry is it safe to use for this circuit.
For Example:
20 LED's (1W each with 350mA and 3V) in series means the voltage required is 20x3 = 60V with current 350mA.
You will require a AC-DC Driver (220V to 60V converter, 350mA constant output).
The input of Driver will be given to 220V AC mains while output fed to the LED circuit. Make sure the positive / negative terminals on the LED side.
The above system will give approx 110x20 = 2200 Lumens or equivalent to 20 x 2.5 CFL = 50W CFL Approx.
For Example:
20 LED's (1W each with 350mA and 3V) in series means the voltage required is 20x3 = 60V with current 350mA.
You will require a AC-DC Driver (220V to 60V converter, 350mA constant output).
The input of Driver will be given to 220V AC mains while output fed to the LED circuit. Make sure the positive / negative terminals on the LED side.
The above system will give approx 110x20 = 2200 Lumens or equivalent to 20 x 2.5 CFL = 50W CFL Approx.
no ways. you can check with a voltmeter, each LED will have a drop of 3 - 3.5V only depending on the make of LED. It is a diode afterall !
We have been installing such LED lights (AC and solar) for more than 4 years now and not 1 have failed or returned to our factory ! we use Osram or CREE LED's and you may check on their datasheets for the current ratings. Hopefully you would be convinced.
you fail to note my point there is no supply voltage without some glitches unless you ensure that the glitches are very minimum for such voltages and if current increases a little the power dissipated rises in a destructive format
do ensure that
also you may try to reduce the no of led's connected in series thereby the voltage current product will be lesser and may serve to protect the led
Can you give us yours transformeless psu circuit which can give several 350mA at 60V?
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