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LED-lit signals?
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As others have said power consumption for LEDs is significantly lower than an ordinary incadescant bulb. I have three of the single lens traffic lights fitted with <br />LEDs on the end of my boat dock as safety lights for boats. The cost is about $36 per unit vs about $3.50 per long life traffic light bulb. I used the LED inserts. It does get a little cold in the water in winter even in Texas and to change the bulb requires an extension ladder in the lake plus a little swimming. Not a pleasant thought this time of year. The safety lights are manditory on docks at my lake (lake board rule) and I want them for the legal liability issue. There are two types; those with pig tail leads and the screw in type. Both types operate on 120 volts, although 12 or 24 volt types are available. The units are either 8 or 12 inches in diameter, depending upon the size of the housing you have. Bought the housings on eBay for under $20 each. Vendors can be found with the search engines. I bought my LEDs from Lights to Go. <br /> <br />I heard that initially some railroads had misgivings about LED due to the color emitted. The red is very railroadish, however the green is a little lighter than the traditional railway signal. I do not think that any sober engine crew member would mistake the lighter green for anything else than GREEN! <br />
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