Do they turn the power off before you climb the tower?
What kind of bulbs are they using? They look like incandescents, but with an odd base.
What kind of wattage are they?
And sorry for being a PITA, how long do the bulbs last?
Heavy duty incandescent lamps in a 5 or 6 bulb automatic changers inside weatherproof fixtures.
LORAN towers were ‘live’ when you climbed. You use a fiberglass ladder to mount the tower and your body takes on the potential of the tower when you touch it. Like a bird setting on a high voltage wire.

What kind of wattage are they?
I'm pretty sure they are 600 watts and there are two of them. One in the top of the beacon and one in the bottom.
