If I recall correctly, most controlled lamps are 555 and GI are 44/47. If you LED the game, get non-ghosting LEDs for the controlled lamps.

I just looked this up. They are combo 44/555. If you look on page 5 of the manual they list which is which. Also they used color 44's. For example , the back panel used alternating red/yellow 44's. The color ones can be bought at Macro.

LED's look horrible in the inserts unless you buy an OCD board

OCD boards are great. If you decide to use one of those, make sure to NOT get non-ghosting LEDs (get the cheaper ones). Non-ghosting LEDs prevent the OCD boards effects from working correctly.

Even if you go this route, you'll lose the fading effects in the game: it especially ruins the attract mode.

LED OCD might also work well; but if you just want bright, clean the inserts, clean the bulbs (or get new ones), and you may be surprised how good bulbs can look, and you'll still have the nice fade effects.

I have a mint RBION (https://pinside.com/pinball/forum/topic/for-trade-ripley-s-believe-it-or-not), and tried some LEDs and it only seemed marginally brighter, as the bulbs and inserts are clean like new.

Yea,

I like LED’s in most games but not this one. TZ is another I left incandescent

LEDs and Pinstadium…

The game does not look so glowing-Purple in real life.
The camera picks up UV light in a weird way that makes photos look incorrect.

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I do agree with comments above.

Regular lamps for the inserts at the grid thingy in center of playfield and around that.
Otherwise leds look great everywhere else and for the GI.

I used just White for GI. No fruity colors

My RBION. The previous owner installed a mix of white leds In the inserts and led flashers. I’ve reverted back to incandescent flashers and think I will do it with the inserts too. Pin has bad ghosting.

The previous owner installed a mix of white leds in the inserts and led flashers. I’ve reverted back to incandescent flashers and think I‘ll do the same with the inserts. Pin has bad ghosting.