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Sylvania SHX-S 85 Supersaver HPS Mercury Retrofit Here is a Sylvania 85W HPS lamp for retrofitting into 125W mercury luminaires. The section at the cap contains an additional ballast and a glowbottle starter. These pictures show the lamp just after ignition and after full warm-up. Keywords: Lamps

Sylvania SHX-S 85 Supersaver HPS Mercury Retrofit


Here is a Sylvania 85W HPS lamp for retrofitting into 125W mercury luminaires. The section at the cap contains an additional ballast and a glowbottle starter.
These pictures show the lamp just after ignition and after full warm-up.

Westinghouse_H38-100DX.jpg GEC20Solarcolour20310-360W20HPS20lit.jpg SHX-S_85.jpg DSC03054.JPG 20191206_185117.jpg
Lamp/Fixture Information
Manufacturer:Sylvania
Model Reference:SHX-S 85
Lamp
Lamp Type:HPS
Filament/Radiator Type:PCA arc tube
Base:E27
Shape/Finish:Eliptical
Fixture
Location:Personal collection
Electrical
Wattage:85W
Current:1.1A
Physical/Production
Factory Location:Manchester NH, USA
Fabrication Date:October 1982
File information
Filename:SHX-S_85.jpg
Album name:Sammi / Mercury Vapour
Keywords:Lamps
Filesize:29 KiB
Date added:31 Oct 2025
Dimensions:802 x 713 pixels
Displayed:13 times
URL:https://trad-lighting.net/gallery/displayimage.php?pid=1017
Favourites:Add to Favourites

Comment 1 to 7 of 7
Page: 1

Ria   [Fri 31 Oct 2025 at 17:11]
If I remember correctly, these were not all that efficient, unlike the MH equivalents, so did not sell all that well. Regardless, this is an interesting little lamp HPS bulb HD
Max   [Fri 31 Oct 2025 at 21:09]
I don't think efficacy had anything to do with them not selling well. Those SHX-S are more efficacious than 110W Penning-type sodium retrofit lamps (111.8 vs 72.7 l/W initial). I think the higher cost price was the main deterrent there. By the way, the 85 W Relumina was also not more efficacious (88.2 lm/W initial).
Ria   [Sat 01 Nov 2025 at 00:40]
Hmmm, I must be remembering wrongly, I had the impression the Relumina lamps were more efficient Wonder
Max   [Sat 01 Nov 2025 at 08:01]
My mistake, I used the wrong data for the SHX-S 85W (that's the drawback with large excel tables). 112 lm/W is way too high for such a low-wattage HPS lamp, its efficacy is in fact close to 80 lm/W, so the Relumina 85W is indeed more efficacious.
Ria   [Sat 01 Nov 2025 at 19:31]
Oops Embarrassed
Max   [Sun 02 Nov 2025 at 10:45]
It happens Wink Back on the subject of that lamp, it has many interesting design features that makes it a highly collectible item. I have one, but it suffered from a cracked wafer base, a common issue with this lamp apparently, and I had to replace it with a new one (luckily there are still some available).
Sammi   [Sun 02 Nov 2025 at 13:54]
That's what happened to us, it arrived from the seller like that, but he replaced it without any quibble.! Cool

Comment 1 to 7 of 7
Page: 1