I've always loved the GBD-200LM-1model, but I wasn't too keen on the green bezel accents and I really wanted a positive MIP screen
I found these spare parts and decided to give them a try on my GBD-200-1A1: https://www.watchbattery.co.uk/shop/products/SECS-10655935.shtml
It's a very quick and easy mod but totally transforms the watch. I actually think they compliment the positive MIP screen much better than the negative version, and man, do these things glow!
I work with glow products that use the same composition as C3 Luminova, so I'm experienced with things that glow in the dark.
Let me tell you that 99% of products that claim to 'glow in the dark' barely glow at all, or lose their lume after only a few seconds. Not so with these. They look RADIOACTIVE and are extremely bright.
If you like things that glow, you will NOT be disappointed with these, trust me.
You can see how much brighter they are than the Slimer glow figure in the bottom right pic.
It's almost impossible to get a pic of them in their neutral state, because they charge up with only the slightest amount of light and emit a glow. I had to use the flash to get them to show their natural non-glow hue (top right pic).