Hi this is a way to make 12v led lights that can be used on any standard 2 pin 12 volt light for example your cars lights, inside your motorhome, boat or 12v home lights(like those for your desk or to light up your paintings or photos).. these are very common so you can replace them almost anywhere and are also very very cheap easy to make and you will be saving lots of electricity since they bearly consume any electricity..
you can make these of 4 or 2 leds or more if conecting them in parallel depending on size and how much light you will need
it pretty much ends up beeng the size of a small 12v car bulb
Step 1: Parts!!!
the parts for this project are as following
you will need (in picture)
1---- 100nf capasitor
1---- ln4007 diod
1---- 150ohm resistor **
4---- super bright white leds (i will be using some bright orange LEDs) *
* this is to make the 4 led version... if you want the 2 leds you will need a 348 ohm resistor instead
** the value of the resistor will also very with the input Voltage, the type of LED you buy and the Diod...
my led has a Forward Voltage of 2V (the white ones are 3.5V or somthing like that) and a max of 20 miliAmpers and my diod of 1.1V and i think a max of 1amp
so if you would like to calculate the exact value for your components you will need this information..
In the images i leave you a formula to calculate the resistor depending on your components..
in this formula (in the image)
V--------- is the voltage you will use to power the led
Vfled---- is the forward voltage of your led
Vfd------- is the forward voltage of your diod
Imax---- is the maximum voltage that your circuit can take so that would be your LEDs operation current
nºleds-- is the number of leds you will be conecting(if the resistor gives a negative number you passed the limit of leds)