 rawgerzThe hell was that?Premium
join:2004-10-03
Grove City, PA | reply to ElminsterOld
Re: Outdoor lighting Not sure how much light you want to have, but a single 175W MV area light will light up that area well. Enough to see around but probably not enough to find a base ball on the ground. These kind of lamps you want high up in the air on a pole though.
I have no idea why, but Sodium seems to be all you can find now. With it's super orange light, it is poor for almost any situation. When I bought a RAB yard light a few years ago I could get them in either flavor, now only ugly Sodium.
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| said by rawgerz:I have no idea why, but Sodium seems to be all you can find now. With it's super orange light, it is poor for almost any situation. Our entire housing development (1,500 units plus a shopping center) used orange lights. I like them. The shopping center replaced the orange lights with white ones, and they're lousy. The parking lot is now very dark, and you can barely see in many places. |
 Nick_LPremium
join:2003-01-22
Pittsburgh, PA | Ugh, In my opinion, high pressure sodium is the worst lighting technology, EVER (well maybe second to the carbon arc lamp of the 1800s). Harsh, unattractive and less energy efficient than people think. Thank goodness they are finally going away (do in large part to law enforcement agencies campaigning to get rid of them). Apparently the cause significant problems when the police try to get eyewitness testimony (eg. a brown sweater might look dark red or a green car might look black.
Here in da 'Burg, they are starting to replace all (public) streetlights with led. It's a long term project, and Im too lazy to google the exact numbers right now, but its something like 32 thousand lights being replaced and will save the city around 1.6 million dollars a year in electricity + plus the (presumed) savings in lower maintenance costs.
With regard to your shopping center, they must have done a cheap retrofit. Any of the other technologies should be able to put out comparable lumens to what was already there. Personally, Ill bet they took the opportunity to use a lower lumen lamp, to save money on the energy bills. |
