Hi i wonder what These white led are Called i know they are orange.
And how do i replace them????
How
Looks like a color 5050 SMD LED to me. You have to measure them with a caliper or something to know it's dimensions.
You will have to desolder them and solder new ones. Soldering SMDs need some practice.
Watch these tutorials first.
Pay attention to the orientation as well. Put them in backwards and they won't work.
Use a meter and test across the two pads. The one with the positive voltage is the anode.
Take note of the upper right corners of them in the pic. That helps orientate the replacements.
Ok thanks what solder do i use
And how to know the voltage on the leds
For starters use 22 gauge 60/40 solder, preferably with a rosin core.
LEDs voltage depends on which color or model you have. If you bought it then the easy way is to ask the seller for a datasheet. Whites are usually 3.2 - 3.4 volts and Reds can be low as 2.4 volts.