Power LED bar

[FAQ-Forum-Bot]

Good morning,
I have to feed this product to a 12v battery, how can I do?
thanks

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Diese Frage von Giovanni C. bezieht sich auf PowerBar LED Leiste warmweiß, 12 Nichia LEDs, 1814lm, CRI90+ und wurde durch den FAQ-Bot automatisch eingestellt.

[T.Haid]

Hello Giovanni.

This won´t work any way. One PowerBar needs a minimum of 36V.

[Sailor]

I have to feed this product to a 12v battery, how can I do?

You have to cut it in 4 pieces, each piece containing 3 LED and driven by a CCS like this.

[Modoeventi]

output voltage that is?

[ustoni]

This is a Constant Current Source, delivering 350 mA into the LEDs. The output voltage will automatically settle to the value that is needed for a current of 350 mA.

[Modoeventi]

so if you use the variant to 700 mA can attack more than three LEDs?

[ustoni]

No. The number of LEDs you can drive with one Current Source depends on the Input Voltage. At 350 mA each LED has a Forward Voltage of typically 3 V. Three LEDs in a row will add to a voltage of 9 V. The Current Souce has a Voltage Drop of 2.5 to 3 V. Thus it should be possible to drive three LEDs with a battery supply of 12 V.
At 700 mA the voltage drop of each LED is typically 3.3 V, amounting to a total of 9.9 V. Add 3 V drop of the current souce and you're at 12.9 V. This is why a 700 mA Current Source will not work.