Hello to everyone.Which light source is better for use in foggy and dusty areas? Which light preformes better and why ?

I’d say MBFR, mercury reflector lamps, as settling dust doesn’t actually affect the light area?
Also LED wound do the same job as their a directed light source.

Hello to everyone.Which light source is better for use in foggy and dusty areas? Which light preformes better and why ?

Maybe HPS to act as a fog light.

LPS have the best performance in fog, because of its monochromatic orange light which penetrating through the fog and don't scattered on it, and HPS is the next. Orange and amber LEDs can also perform well in fog, since their spectra are also nearly monochromatic like LPS.
White LED is the worst for use in fog, because of its high concentration of blue light in the spectrum compared to other general lighting lightsources, which scattered easily by fog.

LPS have the best performance in fog, because of its monochromatic orange light which penetrating through the fog and don't scattered on it, and HPS is the next. Orange and amber LEDs can also perform well in fog, since their spectra are also nearly monochromatic like LPS.
White LED is the worst for use in fog, because of its high concentration of blue light in the spectrum compared to other general lighting lightsources, which scattered easily by fog.

Thanks for relply.Amber LEDs are monochromatic 590nm yellow LEDs,right ? Human eye is sensitive to yellow light.

I’d say MBFR, mercury reflector lamps, as settling dust doesn’t actually affect the light area?
Also LED wound do the same job as their a directed light source.

Thanks for reply.I think that mercury vapour reflector lamp is not as good as HPS for dusty areas like mine,factories,streets and etc.If dust is in air it would affect visiability.Same for fog and smoke.LEDs are directional light which gives dimm ambient.

Maybe HPS to act as a fog light.

I think so.I turned on my HPS lamp on ultra foggy day and it penetrated fog like a cookie.

Thanks for reply.I think that mercury vapour reflector lamp is not as good as HPS for dusty areas like mine,factories,streets and etc.If dust is in air it would affect visiability.Same for fog and smoke.LEDs are directional light which gives dimm ambient.

Mercury reflector lighting was standard in British factories in the 60s and 70s, most steel foundry’s used them in the higher, 700/1000watt sizes, I remember one place as late as 1990 that was full of 700 watt MBFRs
HPS did take over eventually, but later in the 80s/90s.

Mercury reflector lighting was standard in British factories in the 60s and 70s, most steel foundry’s used them in the higher, 700/1000watt sizes, I remember one place as late as 1990 that was full of 700 watt MBFRs
HPS did take over eventually, but later in the 80s/90s.

That is lot of power.For me factories look like real factories with HID and traditional lamp sources.

Mercury reflector lighting was standard in British factories in the 60s and 70s, most steel foundry’s used them in the higher, 700/1000watt sizes, I remember one place as late as 1990 that was full of 700 watt MBFRs
HPS did take over eventually, but later in the 80s/90s.

I would love to have seen a factory in the 1930's or 40's lit with lots of high bay MAT/V lamps, now that would have been awesome 

I’ve seen neon signs cut through fog, but I know you can’t light an area with those, LOL. I’d chose HPS because the orange colored lights goes through haze better. 

HPS. A luminaire with flat glass cover will tend to collect the least dust, and if you use a splash proof luminaire you can hose it once in a while to clean the surface dust off

I’ve seen neon signs cut through fog, but I know you can’t light an area with those, LOL. I’d chose HPS because the orange colored lights goes through haze better. 

LPS does even better   

Hi Jovan, that is a good question, my first thought would be something with yellow in it as this form of lighting was used for car fog lights and before that they used a blue spot fog light....don't see these now...Years ago French cars used cadmium yellow lights also saying they helped better in the fog. Sodium vapor lights could perhaps be another form of lighting, just as long as you can get these. Hope this helps Jovan.