Recently they developed a CFL Replacement for the standard 175W Mercury Vapor Yard Lights. These replacement bulbs were quite expensive when first came out. I just noticed that they are now priced about the same as the MV bulbs. I have always known that these yard lights add considerably to my electric bill, and I even shut off one of my two yard lights except for occasional use. So, the thought of using a CFL which from what I remember, uses around 50W seems like a large savings.
However, my experience with home type CFL bulbs in my garage and other unheated buildings has been poor to useless in cold weather. While saving energy and money is desirable, having a light that proves to be useless in cold weather is not acceptable. And while these lights work at night all year long, the long hours of darkness in winter are the months when they are on the longest.
My question is whether anyone has tried them, and if they function in cold weather? Also do they produce as much light as a 175W Mercury Vapor bulb? I intended to contact the manufacturer, but it seems that the company (Regent) does not list a website on the box, or I would have written it down at the store.