Re: High Pressure Sodium Retrofit Lamp Questions! « Reply #1 on: March 21, 2025, 09:32:33 AM » Author: dor123
Neon-argon filled HPS retrofit lamps, aren't suitable for CWA ballasts, as these ballasts can run them at very high currents, leading to very short lamp life, because of the lamps very high rate of lamp voltage rise during life, which isn't compliant to CWA ballasts. If you want a HPS retrofit lamp for CWA ballast, you need a retrofit HPS lamp with a stable voltage through life like the Philips Retrolux or the EYE SunluxUltra, which are unsaturated HPS lamps that don't cycles at EOL but just glowing mercury color at EOL.
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	Re: High Pressure Sodium Retrofit Lamp Questions! « Reply #3 on: March 21, 2025, 12:59:56 PM » Author: dor123
Most of the retrofits I know available for the American MV ballasts, are 150W, 210W, 350W and 680W and 980W. There is no retrofit for 100W MV lamps.
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I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the international date format (dd.mm.yyyy).

I lives in Israel, which is a 220-240V, 50hz country.

	Re: High Pressure Sodium Retrofit Lamp Questions! « Reply #5 on: March 22, 2025, 03:04:30 PM » Author: WorldwideHIDCollectorUSA
Quote from: Multisubject on March 21, 2025, 11:40:11 AM Thanks, do you know if there are any retrofit lamps what will fit a 100W MH ballast? I personally haven’t seen any of that wattage but I may be wrong If you have a North American 100W M90 pulse start metal halide HX ballast, a standard European 100W high pressure sodium lamp should run perfectly fine as both North American 100W M90 pulse start metal halide lamps and European 100W high pressure sodium lamps have very similar electrical specifications to each other. 100W M90 pulse start metal halide lamps have an operating current of 1.1A and an arc voltage drop of about 100V: https://fusion-lamps.com/wp-content/uploads/sites/4/spec_sheets/TAMCOUSA_DataSheet_928881.pdf European 100W high pressure sodium lamps have an operating current of around 1.2A and an arc voltage drop of 100V: https://www.assets.lighting.philips.com/is/content/PhilipsLighting/comf1612-pss-en_my Even though European 100W high pressure sodium lamps and North American 100W M90 pulse start metal halide lamps have very similar electrical specifications, you will need either an E39 or E40 lampholder for the European high pressure sodium lamp as those lamps almost always use an E40 base while most North American 100W M90 pulse start metal halide lamps use an E26 base, but there are some with an E39 base too and they are less common. Here is an example of a European 100W high pressure sodium lamp running on a North American 100W M90 pulse start metal halide HX ballast: https://www.lighting-gallery.net/gallery/displayimage.php?album=6271&pos=147&pid=186009
« Last Edit: March 22, 2025, 03:13:37 PM by WorldwideHIDCollectorUSA »		Logged

Desire to collect various light bulbs (especially HID), control gear, and fixtures from around the world.

DISCLAIMER: THE EXPERIMENTS THAT I CONDUCT INVOLVING UNUSUAL LAMP/BALLAST COMBINATIONS SHOULD NOT BE ATTEMPTED UNLESS YOU HAVE THE PROPER KNOWLEDGE. I AM NOT RESPONSIBLE FOR ANY INJURIES.

	Re: High Pressure Sodium Retrofit Lamp Questions! « Reply #6 on: March 22, 2025, 03:10:12 PM » Author: WorldwideHIDCollectorUSA
Quote from: Multisubject on March 21, 2025, 03:41:45 PM Ok, so I guess my only option is a 350W Sunlux Ultra or Retrolux... Yes. Additionally, the CEW Retro Ace 360W high pressure sodium retrofit lamps are a good option as they are rebranded Philips Retrolux lamps.
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Desire to collect various light bulbs (especially HID), control gear, and fixtures from around the world.

DISCLAIMER: THE EXPERIMENTS THAT I CONDUCT INVOLVING UNUSUAL LAMP/BALLAST COMBINATIONS SHOULD NOT BE ATTEMPTED UNLESS YOU HAVE THE PROPER KNOWLEDGE. I AM NOT RESPONSIBLE FOR ANY INJURIES.

	Re: High Pressure Sodium Retrofit Lamp Questions! « Reply #7 on: March 22, 2025, 07:16:24 PM » Author: WorldwideHIDCollectorUSA
Here are some European 100W high pressure sodium lamps I found for cheap: https://www.ebay.com/itm/356530893847 https://www.ebay.com/itm/335864733682 https://www.ebay.com/itm/356672238421 They should work well on 100W M90 pulse start metal halide HX ballasts without any circuit modifications.
« Last Edit: March 22, 2025, 07:28:46 PM by WorldwideHIDCollectorUSA »		Logged

Desire to collect various light bulbs (especially HID), control gear, and fixtures from around the world.

DISCLAIMER: THE EXPERIMENTS THAT I CONDUCT INVOLVING UNUSUAL LAMP/BALLAST COMBINATIONS SHOULD NOT BE ATTEMPTED UNLESS YOU HAVE THE PROPER KNOWLEDGE. I AM NOT RESPONSIBLE FOR ANY INJURIES.

	Re: High Pressure Sodium Retrofit Lamp Questions! « Reply #9 on: March 24, 2025, 06:00:31 PM » Author: WorldwideHIDCollectorUSA
As far as I know, European low wattage high pressure sodium lamps should work just fine on North American low wattage pulse start metal halide HX ballasts although there are some minor differences in electrical specifications across same wattage lamps. From what I know, European 35W high pressure sodium runs at 90V, 0.49A, European 50W high pressure sodium runs at 85V, 0.76A, European 70W high pressure sodium runs at 90V, 0.98A, European 100W high pressure sodium runs at 100V, 1.2A, and European 150W high pressure sodium runs at 100V, 1.8A: http://www.mega-ex.com/product_general/Sylvania%20Lighting/Sylvania%20Lighting2/Sylvania%20lamps.pdf In addition, North American low wattage pulse start metal halide lamps have similar electrical characteristics compared to European low wattage high pressure sodium lamps. 35W M130 pulse start metal halide lamps run at 85V, 0.53A, 50W M110 pulse start metal halide lamps run at 85V, 0.66A, 70W M98 pulse start metal halide lamps run at 90V, 0.88A, 100W M90 pulse start metal halide lamps run at 100V, 1.1A, and 150W M102 pulse start metal halide lamps run at 95V, 1.8A. Specs can be shown here: https://www.lighting-gallery.net/index.php?topic=117.msg83943#msg83943 In short, you should be able to safely run low wattage European high pressure sodium lamps on low wattage North American pulse start metal halide HX ballasts. Some lamps might be underdriven or overdriven a little bit, but should be within tolerable levels.
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Desire to collect various light bulbs (especially HID), control gear, and fixtures from around the world.

DISCLAIMER: THE EXPERIMENTS THAT I CONDUCT INVOLVING UNUSUAL LAMP/BALLAST COMBINATIONS SHOULD NOT BE ATTEMPTED UNLESS YOU HAVE THE PROPER KNOWLEDGE. I AM NOT RESPONSIBLE FOR ANY INJURIES.