I have a reasonable collection of pins, currently 60 games.

The vast majority of them are running #44 incandescent bulbs. Assuming each game has 50 bulbs on at any given time, that's 3000 bulbs on. The #44 data sheet says that each bulb draws 150mA at 6.3V. That's 945mW per bulb or 2.84 kW of power. I have no idea how much of that goes to light and how much to heat.

I'm wondering what "price" I am paying for that heat that I have to run air conditioning to cool. Even in the dead of winter, I must cool my game room. Anyone have any further facts to shed on this?

Ultimately, I'm looking to determine the ROI (Return On Investment) of a wholesale LED conversion of my games.

I've started the process to LED all games. It will be a work in progress over a couple of years.

The LED conversion is underway. I figure I'll need about 10,000 bulbs to do them all.

I belong to 4 different pinball leagues. When I host all games are on.

One of the first ones I've done is Paragon. Replaced all bulbs with white LED's. Looks nice!