Adhesive COB LED strips.

These strips are super bright and have an adhesive backing, making them easy to attach to any part of your FPV frame. The strips can be cut at points every 2cm.
SPECIFICATIONS
LED: 480led/meter
Input Voltage: 12 (3-4S)

Installation
Most people are just powering these strips from Vbatt. Being 12 volt rated, this means that at 3S the voltage is just fine, but at 4S they are overvoltage. This may shorten the LED life. Another option is to use a Step-Down voltage regulator to bring 4S battery voltages down to 12 volts.