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Philips 250w SON-T Comfort Pro (SON Deluxe): Full Power 1 x Philips 250w Deluxe tubular high pressure sodium with slightly cooler colour temperature and a greatly improved CRI index that beats some fluorescent! The lamps gives off a lovely warm glow and the better colour rendering index is quite noticeable and nice. Interestingly, the measured electrical characteristics differs somewhat from the datasheet specifications. 24,000h 23,000lm 2150k @ CRI 65% 100v (120v measured) 3a (2.75a measured)

Philips 250w SON-T Comfort Pro (SON Deluxe): Full Power

1 x Philips 250w Deluxe tubular high pressure sodium with slightly cooler colour temperature and a greatly improved CRI index that beats some fluorescent!
The lamps gives off a lovely warm glow and the better colour rendering index is quite noticeable and nice.

Interestingly, the measured electrical characteristics differs somewhat from the datasheet specifications.

24,000h
23,000lm
2150k @ CRI 65%
100v (120v measured)
3a (2.75a measured)

00008405.jpg 387A9186b.jpg 387A7904.JPG 387A7874.JPG glowdim.jpg
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Filename:387A7904.JPG
Album name:FrontSideBus / HID: High-Pressure Sodium
Filesize:5121 KiB
Date added:01 Sep, 2026
Dimensions:3070 x 2048 pixels
Displayed:18 times
URL:http://80.229.24.59:9232/gallery/displayimage.php?pid=25520
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Comment 1 to 6 of 6
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AgentHalogen_87   [01 Sep, 2026 at 10:11 PM]
Nice lamp. Shame they've been long discontinued. What gear is it running on?
FrontSideBus   [02 Sep, 2026 at 08:14 AM]
250w SON gear.
Danny   [02 Sep, 2026 at 09:28 AM]
These are great lamps. From such a good era for lighting
AngryHorse   [02 Sep, 2026 at 01:06 PM]
I remember the town centre of Frodsham being lit with 400 watt SON-E deluxe in the early 90s, it was stunning to see at night Cool
dor123   [04 Sep, 2026 at 04:37 PM]
Is it take longer time to warm up compared to a standard SON-T?
FrontSideBus   [04 Sep, 2026 at 08:40 PM]
Yes. Frodsham is nice, quite a few nice pubs there! I frequently photograph special trains going over the bridges at the nearby river weaver.

Comment 1 to 6 of 6
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