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Renovations Lighting, You Light Up My Life
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alexander3133
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 Dec 21 2016, 12:09 PM
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QUOTE(billyboy @ Dec 21 2016, 11:50 AM)
So, to summarize, the main problem with LEDs is the fact that they emit primarily blue wavelengths and lack the counterbalancing healing and regenerative near-infrared frequencies. They have very little red in them, and no infrared, which is the wavelength required for repair and regeneration.
When you use these aggressive lower frequencies — blue light — it creates ROS that, when generated in excess, causes damage [to your eyes]. So when using LEDs, you end up with increased damage and decreased repair and regeneration.By Dr. Mercola Guess what, at one point I even thinking about tinting my LED lights using 3M window film, but not sure if the window film can help blocking infrared and UV lights from the LED. I do know that the brightness of the light will be reduced with the use of windows film. So far I have chosen 4000k colour temperature LED lights as my house ambient light, and 6500k as task lights in specific areas. |
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alexander3133
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Jun 2 2017, 08:35 AM
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QUOTE(timetokill @ Jun 2 2017, 12:36 AM) Anyone knows where to get this type of lamp? Looks like a wire ball, prefer white or light brown colour. [attachmentid=8866002] |
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alexander3133
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Sep 8 2018, 04:15 PM
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LED Lights Efficiency Data from Suruhanjaya Tenaga Excel spreadsheet, OneDrive link: https://1drv.ms/x/s!AtoOl-yLHwuzjg4sAjtQAZrlDA41Disclaimer: Data obtained from ST website, and post-processed. I am not responsible for any missing data and data accuracy. 
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alexander3133
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Sep 11 2018, 09:11 PM
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QUOTE(veron4best @ Sep 11 2018, 08:54 PM) Yes, higher lm/W indicates the light operates more efficiently in terms of electricity to brightness. These database is from ST, during I post processing the database, I do found out that there are quite some typing errors here and there. Therefore some of the value might have error as well. I recommend to cross check with manufacturer spec to double confirm the lm/W value if there is any. |
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alexander3133
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Sep 20 2018, 12:12 PM
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QUOTE(veron4best @ Sep 20 2018, 12:02 PM) i wanna find this item philips T8 tube. but cant find in the list. You mean Philips MASTER LED T8 tube? This tube is mainly for commercial/industry/factory use, normal retail rarely carry this LED tube. You still can buy but a bit hard, and this kind of LED tube not cheap also. |
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alexander3133
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Sep 25 2018, 08:56 PM
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LED Lights Efficiency Data from Singapore NEA https://e-services.nea.gov.sg/els/Pages/Sea...am=goods&type=pExcel spreadsheet, OneDrive link: https://1drv.ms/x/s!AtoOl-yLHwuzjhCqVUSLmZCTO4_bDisclaimer: Data obtained from Singapore website, and post-processed. I am not responsible for any missing data and data accuracy. 
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