The ones with the fluorescent tube? I use just standard 8-1/2" x 11" white copy paper and wrap the lamp. Two sheets in landscape orientation end-to-end will cover the entire lamp. Typically 1 or two wraps is all it takes and then just tape it with a few pieces of clear tape. I've done both Metallica and TSPP. TSPP has been this way for 10 years now with no issues.

If it's too bright give it another wrap. Too dark, unwrap a turn.

You can purchase an LED backbox with dimming. Basically, it's bright until you hit start and then it automatically dims.

arcadeupkeep.com

black strips of electric tape across the front of the bulb end to end.

this!!! So worth it

I take out the bulbs and lightly fog them with some black spray paint until I get the effect I desire. If I over do it, the paint comes off pretty easily with steel wool and I reshoot until I'm happy.

Some good tips in here. Never thought of wrapping paper around the tube. I might try that... i have use electrical tape in rings to block some of the light, works OK.

I just use blue painters tape on the front of the bulb

This works great, I wrap them kind of loosely. You can also buy plastic tubes made for dimming fluorescent tubes. That's fine, but paper works good too.

And no, you won't burn up your game by wrapping some paper around the tube.

I've had good success applying the removable style of window tinting on the back of the backglass (trimmed to size) and it dims the image enough not to reflect off the playfield glass but still retains some color depth so it's not totally dark or looking inconsistently lit from one edge to the other.

Agree on the tape. It works great.

I use different colored electrical tape, red worked well with TWD and Blue with ST etc.

I installed a black light florescent tube. It reduced the glare some but I can't really recommend it. It made my Batman translite look kinda cool but my Simpsons looked like crap. And eventually I took it out of my Batman.

More worthless advice from Mr. 68.