We have been running the Marinebeam LEDs throughout the boat for 9 years now and I must say… we swear by them.
It turns out the LED bulb we installed into the steaming light does not effect night vision. We did a trip from Blaine to Sucia island one year and arrived at 1am so the trip was done in the dark.
Crab pot floats were slighlty illuminated and the deck was only very dimly lit. Truly, there was more light coming from my instruments than from any of the nav lights.
We are lookin to add another cabn light in the queen berth and will definitely be buying another Marinebeam LED.
Oh… we have had ZERO failures.