frans_waterlander Posted February 18, 2023 Share Posted February 18, 2023 The Sylvania 5000K 40929 MR16 LED lamp can be plugged into the same flight fixtures used for SoLux MR16 bulbs. Its TruWave technology reduces the nasty blue peaks present in most other LED lamps. I installed them in my digital darkroom, recalibrated my monitor and I get as good a match between my images on the monitor and prints as with the now obsolete SoLux lamps. You get a vastly improved life time and lower power consumption as well.https://www.ledvanceus.com/products/led-lamps/MR16/Pages/MR16-Family.aspxhttps://assets2.ledvanceus.com/media/bin/asset-10373421/asset-10373421?_gl=1*1k9v328*_ga*MTc4MTM1NzMzNS4xNjc2NjczOTU5*_ga_5T7XMS5074*MTY3NjY4MTE0MC4yLjEuMTY3NjY4MTE2MC4wLjAuMA.. Link to comment Share on other sites More sharing options...
digitaldog Posted February 18, 2023 Share Posted February 18, 2023 (edited) And you have and tested colorimetrically to back this up: yes or no???“replacement” only by virtue of fitting and they are not close to identical to Solux bulb which are not obsolete. Edited February 18, 2023 by digitaldog Author “Color Management for Photographers" & "Photoshop CC Color Management" (pluralsight.com) Link to comment Share on other sites More sharing options...
digitaldog Posted February 18, 2023 Share Posted February 18, 2023 Someone needs to study SPDs (specifically Solux bulbs) before embracing one from a manufacturer, not one they didn't and cannot independently measure and provide to readers. Fortunatel, someone here can: Author “Color Management for Photographers" & "Photoshop CC Color Management" (pluralsight.com) Link to comment Share on other sites More sharing options...
digitaldog Posted February 18, 2023 Share Posted February 18, 2023 8 hours ago, frans_waterlander said: The Sylvania 5000K 40929 MR16 LED lamp can be plugged into the same flight fixtures used for SoLux MR16 bulbs. Its TruWave technology reduces the nasty blue peaks present in most other LED lamps. I installed them in my digital darkroom, recalibrated my monitor and I get as good a match between my images on the monitor and prints as with the now obsolete SoLux lamps. It is good to see you cleaned up your claims above from what you wrote on LuLa after someone asked for specifics of the claims: https://forum.luminous-landscape.com/index.php?topic=141868.msg1250339#msg1250339 "Sylvania MR16 TruWave LED 40929 lamps are a direct replacement* for 4700K or 5000K SoLux bulbs. Fits directly into existing 12V MR16 fixtures. The TruWave Technology suppresses** the nasty blue peak present in most other LED lamps." *indeed, they do fit. Like all MR16 bulbs..... **"Suppresss" and eliminate the spike (peak); as seen here: big difference. Author “Color Management for Photographers" & "Photoshop CC Color Management" (pluralsight.com) Link to comment Share on other sites More sharing options...
Sandy Vongries Posted February 18, 2023 Share Posted February 18, 2023 Gents... Link to comment Share on other sites More sharing options...
digitaldog Posted February 18, 2023 Share Posted February 18, 2023 Sandy, I know. But the facts and science (color science) are indisputable. I'm done. 1 Author “Color Management for Photographers" & "Photoshop CC Color Management" (pluralsight.com) Link to comment Share on other sites More sharing options...
digitaldog Posted February 28, 2023 Share Posted February 28, 2023 Sylvania True Wave "Daylight" (that failed) LED vs (non true wave) InterTech LED vs Solux 4700K. The best part of the Sylvania was it cost me a mere $7.99 plus tax. And yes, it fits my MR16 task lamp. As does the InterTech LED. Otherwise, nothing to write home about. Nothing like the Solux in terms of SPD or ISO 3664 goals. Not really that impressive compared to the InterTech for all the hype about Blue Wave technology. Do note the fail and pass for ISO 3664 on all three bulbs; note Solux failed the Brightness Goal of 2000 lux (it's much brighter than the others). Solux rates it as CCT 4700K, measured at just shy of CCT 4600 (so yeah, that metric is as some here know, some argue, all over the map). The task lamp was in the same position for all measurements without a diffuser, approx 3 feet from blub to Spectroradiometer. Popped the Solux back into the task lamp after these tests. Does anyone want to buy a used Sylvania True Wave "Daylight" cheap? 🤪 Author “Color Management for Photographers" & "Photoshop CC Color Management" (pluralsight.com) Link to comment Share on other sites More sharing options...
digitaldog Posted March 1, 2023 Share Posted March 1, 2023 The best Solux replacement for those who want the same qualities is yet another Solux bulb. https://www.replacementlightbulbs.com/lamp18004.html Plenty (94 in stock as of yesterday) is still available at a screaming price of $7.43. Less money than the suboptimal Sylvania (at least in terms of the spectrum). In Europe: https://shop.eiko-europe.de/SOLUX/SoLux-Daylight/SoLux-MR16-GU5-3-4700K-10-12V-35W.html Author “Color Management for Photographers" & "Photoshop CC Color Management" (pluralsight.com) Link to comment Share on other sites More sharing options...
frans_waterlander Posted March 2, 2023 Author Share Posted March 2, 2023 Andrew, appreciate the test reports. Why would the SoLux test reports say the brightness failed with a goal of 2000 lux and measured values of 2742 lux? Also, could you show in this thread the test report of the Northlux 95 CRI BR30 lamp for comparison purposes, edited to show the real SPD curve? Link to comment Share on other sites More sharing options...
digitaldog Posted March 2, 2023 Share Posted March 2, 2023 (edited) Quote 8 hours ago, frans_waterlander said: Andrew, appreciate the test reports. Why would the SoLux test reports say the brightness failed with a goal of 2000 lux and measured values 2742 lux Edited March 2, 2023 by digitaldog Author “Color Management for Photographers" & "Photoshop CC Color Management" (pluralsight.com) Link to comment Share on other sites More sharing options...
frans_waterlander Posted March 2, 2023 Author Share Posted March 2, 2023 Got it. How about the Northlux 95 CRI BR30 lamp for comparison purposes, edited to show the real SPD curve? Link to comment Share on other sites More sharing options...
frans_waterlander Posted March 2, 2023 Author Share Posted March 2, 2023 Got it. How about the Northlux 95 CRI BR30 lamp for comparison purposes, edited to show the real SPD curve? Link to comment Share on other sites More sharing options...
digitaldog Posted March 2, 2023 Share Posted March 2, 2023 (edited) 5 minutes ago, frans_waterlander said: Got it. How about the Northlux 95 CRI BR30 lamp for comparison purposes, edited to show the real SPD curve? What about it? No comparisons are necessary, OT; as it isn't a Solux "Replacement". That's the topic you started here. The real SPD was provided elsewhere for a blub that isn't an MR16 nor the same CTT and has nothing to do with Solux of which are still available. Edited March 2, 2023 by digitaldog Author “Color Management for Photographers" & "Photoshop CC Color Management" (pluralsight.com) Link to comment Share on other sites More sharing options...
glen_h Posted March 2, 2023 Share Posted March 2, 2023 In another thread about enlarger bulbs, I was wondering about LED replacements. Searching Amazon, I found some similar lamps, which might have been MR16, though I was also trying to match the base. Some were different base, but that might be fixable. Does anyone use these for enlarger lamps? I think they are less bright than 100W halogen lamps. -- glen Link to comment Share on other sites More sharing options...
digitaldog Posted March 2, 2023 Share Posted March 2, 2023 As you can see from my reports, the halogen (in this case, 50W) is significantly brighter than the two LEDs. Author “Color Management for Photographers" & "Photoshop CC Color Management" (pluralsight.com) Link to comment Share on other sites More sharing options...
frans_waterlander Posted March 2, 2023 Author Share Posted March 2, 2023 2 hours ago, digitaldog said: What about it? No comparisons are necessary, OT; as it isn't a Solux "Replacement". That's the topic you started here. The real SPD was provided elsewhere for a blub that isn't an MR16 nor the same CTT and has nothing to do with Solux of which are still available. Since SoLux bulbs are no longer made, I'm trying to find the best replacements. I prefer 12V MR16's since I have a 12-volt MR16 track lighting setup, but light output quality comes first with me. If the best alternative is an A19, A21, BR30, etc., halogen, LED or whatever other type, then that's what I'll get. Since the Sylvania 12V MR16 LED lamp that I had hoped would be a good alternative did so poor in your tests, I'm very interested in the NorthLux BR30 LED lamp that you tested and raved about: "These bulbs, thus so far provide the best report I've seen for any LED I've measured!". I would appreciate it very much if you could correct the SPD part of your report on that lamp and post it here. Link to comment Share on other sites More sharing options...
digitaldog Posted March 2, 2023 Share Posted March 2, 2023 (edited) 9 minutes ago, frans_waterlander said: Since SoLux bulbs are no longer made, I'm trying to find the best replacements. https://www.replacementlightbulbs.com/lamp18004.html There are (today) 87 Solux bulbs there for $7.43 each. If you need more than that, I'd be happy to search for other sites that will sell you the bulbs. MANY sites are selling them! That they are no longer being made isn't material to being able to replace them. 9 minutes ago, frans_waterlander said: I'm very interested in the NorthLux BR30 LED lamp that you tested and raved about: You can buy them here: https://www.waveformlighting.com Edited March 2, 2023 by digitaldog Author “Color Management for Photographers" & "Photoshop CC Color Management" (pluralsight.com) Link to comment Share on other sites More sharing options...
frans_waterlander Posted March 2, 2023 Author Share Posted March 2, 2023 I have spare SoLux bulbs, that's not the issue. I'm looking ahead, so I would appreciate it very much if you could correct the SPD part of your report on that NorthLux lamp and post it here. Link to comment Share on other sites More sharing options...
digitaldog Posted March 2, 2023 Share Posted March 2, 2023 Just now, frans_waterlander said: I have spare SoLux bulbs, that's not the issue. Then you're all set with an inferior LED that fits what you say you prefer: ("I prefer 12V MR16's since I have a 12-volt MR16 track lighting setup"). On 2/18/2023 at 12:16 AM, frans_waterlander said: The Sylvania 5000K 40929 MR16 LED lamp can be plugged into the same flight fixtures used for SoLux MR16 bulbs. Its TruWave technology reduces the nasty blue peaks present in most other LED lamps. I installed them in my digital darkroom, recalibrated my monitor and I get as good a match between my images on the monitor and prints as with the now obsolete SoLux lamps. You get a vastly improved life time and lower power consumption as well. Author “Color Management for Photographers" & "Photoshop CC Color Management" (pluralsight.com) Link to comment Share on other sites More sharing options...
frans_waterlander Posted March 2, 2023 Author Share Posted March 2, 2023 2 minutes ago, digitaldog said: Then you're all set with an inferior LED that fits what you say you prefer: ("I prefer 12V MR16's since I have a 12-volt MR16 track lighting setup"). That doesn't work for me. Based on your report, that LED is out. Again, you posting the corrected test report on the NorthLux lamp would be greatly appreciated. Link to comment Share on other sites More sharing options...
digitaldog Posted March 2, 2023 Share Posted March 2, 2023 1 minute ago, frans_waterlander said: That doesn't work for me. That is indeed a shame. 🥲 1 minute ago, frans_waterlander said: Again, you posting the corrected test report on the NorthLux lamp would be greatly appreciated. That makes no sense; no idea what you're looking for ("a corrected test report"). Author “Color Management for Photographers" & "Photoshop CC Color Management" (pluralsight.com) Link to comment Share on other sites More sharing options...
frans_waterlander Posted March 2, 2023 Author Share Posted March 2, 2023 6 minutes ago, digitaldog said: That is indeed a shame. 🥲 That makes no sense; no idea what you're looking for ("a corrected test report"). The "SPD" part on the right. Link to comment Share on other sites More sharing options...
digitaldog Posted March 2, 2023 Share Posted March 2, 2023 2 minutes ago, frans_waterlander said: The "SPD" part on the right. 9 minutes ago, digitaldog said: That makes no sense; no idea what you're looking for ("a corrected test report"). Author “Color Management for Photographers" & "Photoshop CC Color Management" (pluralsight.com) Link to comment Share on other sites More sharing options...
frans_waterlander Posted March 2, 2023 Author Share Posted March 2, 2023 The "SPD" part on the right is not an SPD. Link to comment Share on other sites More sharing options...
digitaldog Posted March 2, 2023 Share Posted March 2, 2023 Just now, frans_waterlander said: The "SPD" part on the right is not an SPD. 21 minutes ago, digitaldog said: That makes no sense; no idea what you're looking for ("a corrected test report"). Maybe Sandy or someone else can tell you what you want to hear. I've provided the color science and data about the LEDs you recommended; they are hardly a Solux replacement other than they fit by being MR16s. Author “Color Management for Photographers" & "Photoshop CC Color Management" (pluralsight.com) Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now