Most effecient lighting?????????
- Thread starter dia480
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hurk27
Senior Member
- Location
- Portage, Indiana NEC: 2008
Re: Most effecient lighting?????????
Sofar soduim vapor is but metal halide is catching up fast as the new pules start fixtures use half as much energy to startup and the 300w produces more light than the older 400w
Look on Rudd's web site and they will deal stright with the contractor.
Went there and they have test that the 150w psmh out performed the hps 150w
psmh was 13,500 lumans
hps was 9500 lumans
now when they get into higher the hps comes back but not by much.
Here's the link:
http://www.ruudlighting.com/
[ June 08, 2003, 04:27 AM: Message edited by: hurk27 ]
Sofar soduim vapor is but metal halide is catching up fast as the new pules start fixtures use half as much energy to startup and the 300w produces more light than the older 400w
Look on Rudd's web site and they will deal stright with the contractor.
Went there and they have test that the 150w psmh out performed the hps 150w
psmh was 13,500 lumans
hps was 9500 lumans
now when they get into higher the hps comes back but not by much.
Here's the link:
http://www.ruudlighting.com/
[ June 08, 2003, 04:27 AM: Message edited by: hurk27 ]
Re: Most effecient lighting?????????
There is a lighting out there that is expensive I put 3 of them in a room with a 20ft ceiling and about 20 by 30 ft and it looks like day light out and they are expensive but the bulbs are rated for 5 year use but off the top of my head i can not remember the name when I do i will get back to you
There is a lighting out there that is expensive I put 3 of them in a room with a 20ft ceiling and about 20 by 30 ft and it looks like day light out and they are expensive but the bulbs are rated for 5 year use but off the top of my head i can not remember the name when I do i will get back to you
charlie tuna
Senior Member
- Location
- Florida
Re: Most effecient lighting?????????
the old reliable "sky"-light beats them all!
the old reliable "sky"-light beats them all!
charlie tuna
Senior Member
- Location
- Florida
Re: Most effecient lighting?????????
i have read some stuff about led light fixtures and the efficency is great but right now is limited to it's application...
i have read some stuff about led light fixtures and the efficency is great but right now is limited to it's application...
- Location
- Bremerton, Washington
Re: Most effecient lighting?????????
Metal Halide is being replaced with T-5/electronic flouresent lighting. It is more energy efficient, can be switched for daylight controls, and has instant on, the lamp life is far longer, and lamp color does not change over life as with Metal Halide.
Low Pressure Sodium is more efficent than HPS, but has very poor color rendition, and the lamps are very long
For outdoor area lighting, the source of interest is the induction lamp. a radio frequency generator excites the lamp, estimates are 100,000 hrs + lamp life (HPS is 24,000). There is a large project in Arizona with 7,000 inductions street lights being installed. Induction ligting has a good color rendition, similar to HID, but is instant on. HID lamp life is about 12,000 hrs.
Of course LED applications are not too far off.
For the average inside application, the best source is T-8 with electronic ballast. Also the compact flouresents are a good source for a downlight.
For the typical outside application, HPS is the standard, however, there are now fixtures with 42 and 84 watt compact flouresnet, but keep in mind compact flouresent (I think I have mis-spelled it) has a short lamp life of 12,000 hours.
Metal Halide is being replaced with T-5/electronic flouresent lighting. It is more energy efficient, can be switched for daylight controls, and has instant on, the lamp life is far longer, and lamp color does not change over life as with Metal Halide.
Low Pressure Sodium is more efficent than HPS, but has very poor color rendition, and the lamps are very long
For outdoor area lighting, the source of interest is the induction lamp. a radio frequency generator excites the lamp, estimates are 100,000 hrs + lamp life (HPS is 24,000). There is a large project in Arizona with 7,000 inductions street lights being installed. Induction ligting has a good color rendition, similar to HID, but is instant on. HID lamp life is about 12,000 hrs.
Of course LED applications are not too far off.
For the average inside application, the best source is T-8 with electronic ballast. Also the compact flouresents are a good source for a downlight.
For the typical outside application, HPS is the standard, however, there are now fixtures with 42 and 84 watt compact flouresnet, but keep in mind compact flouresent (I think I have mis-spelled it) has a short lamp life of 12,000 hours.
frenchelectrican
Senior Member
- Location
- Nord'est Wisconsin et Paris France
Re: Most effecient lighting?????????
dia yes low pressure sodium light is most useable light per watt but cant stand mono color it is very orange and very poor color retation but highpressure sodum is pretty common here in usa for streetlighting and large storage bulding but now most are changeing to metal haldie for better colour retaion and wattage is better now than the old style and i did sold quite a few 320 and 350 watts metalhalide pulse start verison and man it do really go better than old 400 watts units do crank out and have longer service life than old one and restarting time is faster than old one old one take about 15- 45 min to restart and new pulse start do less than 5 min that is big diffrence and for flourescent lamps t-8 is most common now but i start seeing T-5 version comming out i dont have much exparnce with it but what i heard it do really kick out alot of light per watts and compact flourscent lamps they have pretty good slection now but life will run from 6k hours to 20 k hours depend on what kind most run in 12-15 k hours life ave now
led light is pretty new to me but have very good service life 100,000 hours life
induction lamps i dont have much info with me yet it is a new toy for me to figure it out
merci marc
dia yes low pressure sodium light is most useable light per watt but cant stand mono color it is very orange and very poor color retation but highpressure sodum is pretty common here in usa for streetlighting and large storage bulding but now most are changeing to metal haldie for better colour retaion and wattage is better now than the old style and i did sold quite a few 320 and 350 watts metalhalide pulse start verison and man it do really go better than old 400 watts units do crank out and have longer service life than old one and restarting time is faster than old one old one take about 15- 45 min to restart and new pulse start do less than 5 min that is big diffrence and for flourescent lamps t-8 is most common now but i start seeing T-5 version comming out i dont have much exparnce with it but what i heard it do really kick out alot of light per watts and compact flourscent lamps they have pretty good slection now but life will run from 6k hours to 20 k hours depend on what kind most run in 12-15 k hours life ave now
led light is pretty new to me but have very good service life 100,000 hours life
induction lamps i dont have much info with me yet it is a new toy for me to figure it out
merci marc
hurk27
Senior Member
- Location
- Portage, Indiana NEC: 2008
Re: Most effecient lighting?????????
Some of these newer flourescent fixtures are using a type of RF generator to fire them and they do get brite . I was using my spectrum analizer to find what was causing some interfearance in a radio room and it was the ballest. at 10khz. it was wiping out the am radio for regular broadcast just installed some filter caps to block anything above 15khz. and had no problem afterwards. you could almost hold a coil of wire hooked up to a speaker up to the ballest and hear the high pitched wine of the square wave signal without a amplifier.
Some of these newer flourescent fixtures are using a type of RF generator to fire them and they do get brite . I was using my spectrum analizer to find what was causing some interfearance in a radio room and it was the ballest. at 10khz. it was wiping out the am radio for regular broadcast just installed some filter caps to block anything above 15khz. and had no problem afterwards. you could almost hold a coil of wire hooked up to a speaker up to the ballest and hear the high pitched wine of the square wave signal without a amplifier.
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