Q&A: Why aren’t High Pressure Sodium (HPS) lamps being considered as an alternative to Incandescent?
Question by trentrockport: Why aren’t High Pressure Sodium (HPS) lamps being considered as an alternative to Incandescent?
Here’s a link to a page where they are sold:
http://www.4hydroponics.com/lighting/sodiumbulbs.asp
Here’s a competitor’s link so I’m not accused of playing favorites:
http://www.htgsupply.com/products.asp?categoryID=4&subcategoryID=123&typeID=75
I use them in my greenhouse to artificially lengthen daytime when needed.
They’re twice as efficient as CFL’s, clocking in at upwards of 120 lumens/watt. Compare to 70 lumens/watt for a CFL. Their spectrum is pleasant, they can theoretically be used on an ordinary household dimmer.
Of course, they’re expensive. The smallest of ’em, at 20,000 lumens is comparable to a 2,000 watt (!!!) incandescent.
Produced in quantity, the price would go down I’d think. They actually *do* last 8000-12000 hours rather than my CFL’s which seem to burn out after 500 hours on average.
So… why aren’t they a contender?
Best answer:
Answer by DME B
Because the whole “green” thing is just a scam perpetrated against the American People so that we feel better when everything costs sooooo much more.
If our government really wanted us to be green, there are much simpler ways to make a start. Those light bulbs are one way.
Earth friendly cars have been being made for decades. Why don’t we have them. Solar has been around forever. Etc, etc, etc.
We don’t get the products until the government and/or big business has brainwashed us to how much we need them and found a way to make money from them.
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