12 vdc LED at 10 vdc

morphingstar · Oct 30, 2012

I intend to use some white LED strips with 60 - 300 LEDs
These are sold rated 12 vdc

I wonder whether I can reliably use them from 10 - 15 vdc.
It would be a vehicle battery supplying the volts.

Sellers have no clue about suitable / permitted voltage range.

Any practical experiences around?
Thanks.

strip example here
http://articulo.mercadolibre.com.mx...ra-agua-300-led-exteriores-rollo-5-metros-_JM

CocaCola · Oct 30, 2012

They should work but intensity will vary, they are generally series groups of 3 LEDs with a limiting resistor... And most are balanced for a nominal 12V voltage... There is always the chance they won't work at less Voltage, but the slight over voltage won't be as big of an issue, they will work but be slightly overdriven...

BTW a 12V vehicle battery is 'dead' at 12V, it should never be bellow 12V certainly not 10V...

morphingstar · Oct 31, 2012

Thanks, yes.
The LED will not be connected at the battery.
It will be connected at some wires where together with other loads there will be a voltage drop.

Practical experience anyone?

12 vdc LED at 10 vdc

morphingstar

CocaCola

morphingstar

PIC32M and a light bulb (12 VDC, 12 watt), and 120VAC 100 watt

10 LED string.

10 watt LED

Led sequence of 10

Driving a 10 watt LED

5-10 watt led circuit needed.

run a low voltage led(3volt) at higher voltage(12-18 volt)

LED circuit powered by 12 volt molex