Is this wired in series to the resistor?
If not could you provide a circuit diagram to show how this can be done?
These power LED stars offer an extremely high light output in an energy efficient way. The power LED comes mounted on to special PCB star that acts to draw heat away from the LED, therefore extending it operational life. This makes them perfect for many lighting applications, a datasheet can be viewed detailing a few options.
|Forward Voltage:||3.0V - 3.4V|
|Colour Temp:||2700K - 3300K|
The following link explains how you would need to connect this up, also it explains a little more into how it works how-to-make-a-battery-operated-dimmer-light-project
Hi Nathan, It is very difficult to comment on if the IPhone charger would be suitable as we don’t have any information regarding this. For the 1W LED star we have three recommend power options that can be viewed here, how-to-use-1w-star-led. The key points to bear in mind when selecting your power supply is it must be able to deliver 310mA per 1W LED star and the correct power resistor must be used depending on the supply voltage and number of LED stars your using.
Unfortunately you wouldn’t be able to use a coin cell battery to power this, the LED star draws 310mA and the coin cell batteries can only supply 200mA.
It would depend on the current of the supply, and also the current that the electromagnet uses. You might get some back EMF from the electromagnet, so it would be worth putting a beefy blocking diode in line with the LEDs
Yes you can use a battery to power the LED, you can power it from either AA batteries or a Polymer Lithium Ion Battery. This would give you around 3 hours of battery life. It would still be recommended to use a resistor, and this would depend on the batteries you wanted to use.
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