I point to consider for LED life in aircraft is the voltage.
A 12 volt system may run at 13.8/14 volts and a 24 volt will be 27.6/28.
So 12/24 volt LEDs are a nono use 14/28 volt. Some lamps can have voltage regulators built in, these can use pulse width modulation, to hold the light output constant and protect the LED with changing voltages. Switching at very high frequency can radiate RFI, affecting radios ect. I have this problem on my 23ft cabin cruiser, the 15watt LED bulbs wipe out the VHF FM radio.
I would only fit 14/28 volt none voltage regulated bulbs and if dimming is required, then have mechanical shutters on the bulb holders.