| The 65 cri HPS lamps are very rare. Never seen those anywhere ever, until i bought one. Go buy one NOW before they are gone forever, there are still a few retail outlets that have some stock sitting around. Perhaps they're not cheap, but at least they're cheaper than SOX lamps and they can be run on conventional SON gear.
I have one, a Philips SON Comfort 150w. It's very odd, they still have mostly the same yellowish SON color but suddenly you can see other colors too. It's not like the SDW-T "White SON" that actually looks warm white to the eye, like a good quality oil lamp flame. No, it still makes the room look completely golden yellow. Slightly lighter yellow due to the slightly higher color temp, but still.
It is hard to compare it qualitatively, i did take pictures of a color card both under SON and SON Comfort light, but the camera is too good at dealing with bad CRI to actually give a "feel" of what the colors look like irl. A spectrum graph doesn't really help with that.
I know large churches were lit with SON lamps at some point. They would have been better off with SON Comfort if the golden light was acceptable to start with.
Visual acuity gets better with higher color temperatures, which is another reason why street lights these days tend towards higher color temperatures. But imho 3000k is plenty high.
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« Last Edit: March 21, 2025, 02:35:18 AM by Laurens »
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