Photo Gallery

Home > User galleries > Max > Misc lamps and lighting
Return to the thumbnail page FILE 8/189 Return to start See previous file See next file Skip to end
Living-room HID uplighter v.4 - under the hood My 4th-gen living-room HID uplighter has four discharge lamps, which requires some serious electronics to drive all that. Because of the high voltage required to ignite the lamps (2 to 5 kV) I've placed the ballast units as close as possible to the luminaire, and here's how it looks like with removed covers. Keywords: Lanterns

Living-room HID uplighter v.4 - under the hood


My 4th-gen living-room HID uplighter has four discharge lamps, which requires some serious electronics to drive all that. Because of the high voltage required to ignite the lamps (2 to 5 kV) I've placed the ballast units as close as possible to the luminaire, and here's how it looks like with removed covers.
LR_uplighter_spectra.jpg _DSC2767m.JPG _DSC1186m.jpg _DSC2771m.jpg DSC_3730m.jpg
File information
Filename:_DSC1186m.jpg
Album name:Max / Misc lamps and lighting
Keywords:Lanterns
Filesize:491 KiB
Date added:Apr 18, 2025
Dimensions:800 x 1202 pixels
Displayed:16 times
URL:https://trad-lighting.net/gallery/displayimage.php?pid=762
Favorites:Add to Favorites

Comment 1 to 7 of 7
Page: 1

Sammi   [Apr 19, 2025 at 02:20 PM]
Wow.! Mind Blown Surprised
What more can I say.? Love
Ria   [Apr 19, 2025 at 05:41 PM]
How about incredibubble Laughing
Max   [Apr 21, 2025 at 07:51 PM]
Thanks ladies, it was quite a challenge to cram that many ballast on such a small space and make it look good.
Ria   [Apr 21, 2025 at 11:46 PM]
I think I would have combined the cables up to the lamps, cable-tied them together or something; to me it would look better than having them separate, but other than that, perfect Cool
Max   [Apr 22, 2025 at 09:35 AM]
I thought about that but I decided against bundling the lamp-ballast cables to avoid strong parasitic coupling between circuits. The issue is that one of the ballasts operates at above 100 kHz, and at such high frequency it is very easy to induce currents in other electronic ballasts via capacitive coupling, and I'm not sure they would react too well to that. So, by keeping the outputs separate and the luminaire grounded I ensure that I won't run the risk of killing the drivers prematurely.
Sammi   [Apr 22, 2025 at 12:40 PM]
Thanks for explaining Max, that makes perfect sense. Love
Max   [Apr 23, 2025 at 10:29 PM]
You're welcome, Sammi! There certainly are some nontrivial aspects to this system.

Comment 1 to 7 of 7
Page: 1