OK, since my last question was answered completely in less than an hour (thanks listers, I never thought to search amazon for the box. Turns out it was there for $22.) Here is my next question... Whe
I was under the impression that mercury vapor lights are pretty efficient- as good as any other type of fluorescent light. But those things (sometimes called "yardblasters") tend to send too much lig
The term used by fans of astronomy is "Full Cut Off Lights". There is a big drive to eliminate vertical light pollution. Here are links to related information: http://www.darksky.org/index.php?option
Mercury vapor lights are not as efficent as high pressure sodium lights, nor newer technology such as ceramic metal halide, induction lamp, and leds. The production of new fixtures and ballasts ended
MV lights are old tech and as someone else pointed out, high pressure sodium are more efficient. However, I went with a couple of CFL floods to illuminate the area in front of my shop and I'm pretty
Author: eric at megageek.com (eric at megageek.com)
Date: Tue, 15 Nov 2011 10:43:11 -0500
OK, since my last question was answered completely in less than an hour (thanks listers, I never thought to search amazon for the box. Turns out it was there for $22.) Here is my next question... Whe
I was under the impression that mercury vapor lights are pretty efficient- as good as any other type of fluorescent light. But those things (sometimes called "yardblasters") tend to send too much lig
Author: darmstrong at nexicom.net (darmstrong at nexicom.net)
Date: Tue, 15 Nov 2011 15:20:14 -0500
The term used by fans of astronomy is "Full Cut Off Lights". There is a big drive to eliminate vertical light pollution. Here are links to related information: http://www.darksky.org/index.php?option
Mercury vapor lights are not as efficent as high pressure sodium lights, nor newer technology such as ceramic metal halide, induction lamp, and leds. The production of new fixtures and ballasts ended
MV lights are old tech and as someone else pointed out, high pressure sodium are more efficient. However, I went with a couple of CFL floods to illuminate the area in front of my shop and I'm pretty