I want to update some games from incandescent to LED, but the eternal question remains... what kind of bulbs should I pick?
Comet has a nice article discussing the options and they include the color temperatures for their most popular bulbs:
https://www.cometpinball.com/pages/the-art-of-pinball-leds
Warm white: 3000-4000K
Sunlight: 4000-5000K
Cool white AKA Natural white: 5000-6000K
OK, but what does a color temperature REALLY look like?
Well, I realized that have smart some LED bulbs that let me dial in color temperature... so I don't have to guess what a game should look like, I can just view a game under a bulb that is set to any color temperature I want.
But how can I share those photos? Color correction is pretty complicated and everyone's screen is different. Here's what I tried...
I took the photos on my Android phone, and then used the Google Photos app on my iPad to tweak saturation and warmth to make the playfield on screen look like the playfield in front of me. If you look at this post on a bright iPad screen that does not have Night Shift turned on... it should hopefully look close to what I saw. I would think an iPhone would be similar.
FWIW, the photos also look pretty correct on my Android phone, in Google Photos on my color-corrected Windows monitor, and in this post on my Windows monitor. I was honestly surprised at the consistency.
The pics below are in this order: OEM incandescent lights (different angle to hide from backglass glare), 3500K, 4500K, 5500K.
Here are my impressions in case the pictures are misleading.
* Compared to the OEM incandescent lighting, ~3500K (like Comet Warm White) is dramatically, outrageously cooler. After a few minutes of looking at the game under my lighting tests, the OEM colors looked flippin weird... so yellow!
* Despite the dramatic difference, I liked ~3500K *a lot.* Now that I have done a comparison, OEM incandescent lights are so yellow they look crazy.
* I liked ~4500K OK, almost as much as ~3500K... but not quite. I could see choosing Sunlight for a game with cooler tones in the artwork; but I also think Warm White will be good everywhere.
* I did not like ~5500K at all. It was like grocery store lighting.
* Comet's article said something like "if you aren't sure what to do, Sunlight is safe" and based on my tests that sounds fair. If you tend not to like cooler lighting in general, I think Warm White is a safer all-around choice.
* Based on this test I am going to confidently order a ton of Comet 2SMD frosted Warm Whites on the Black Friday sale.
I hope this helps someone.
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