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400w Thorn SON Deluxe: full power. 1 x 400w Thorn Deluxe high pressure sodium running at full power. Deluxe SON lamps have a cooler colour temperature than standard SON lamps and also have a much higher CRI which is better than mercury vapour and some fluorescent! The only downside is reduced efficiency and lifespan due to the higher temperatures and pressures that these lamps run at. 12,000h 34,000lm 2200k @ CRI 65

400w Thorn SON Deluxe: full power.

1 x 400w Thorn Deluxe high pressure sodium running at full power.
Deluxe SON lamps have a cooler colour temperature than standard SON lamps and also have a much higher CRI which is better than mercury vapour and some fluorescent!
The only downside is reduced efficiency and lifespan due to the higher temperatures and pressures that these lamps run at.

12,000h
34,000lm
2200k @ CRI 65

387A4143.JPG 387A4071.jpg 387A4166.JPG 1777654290759.jpg IMG_1287.JPG
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Filename:387A4166.JPG
Album name:FrontSideBus / HID: High-Pressure Sodium
Filesize:5910 KiB
Date added:01 May, 2026
Dimensions:3070 x 2048 pixels
Displayed:95 times
URL:http://80.229.24.59:9232/gallery/displayimage.php?pid=24819
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dor123   [01 May, 2026 at 08:58 PM]
How a deluxe HPS lamp can have stable colour on regular ballast, while white HPS lamps requires special gear?

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