I bought some of these last Christmas. This time (on my birthday) I sent a request for three more bites until Christmas. you noticed Adding new Christmas lights is addicting, like eating peanuts. My neighbor across the street also has a bug. It was a bit windy last Christmas and some of my lightbulbs hit the house and broke. Parts are reasonable. These are old fashioned C9 style bulbs. One annoyance (which I deducted a star for) is that four of the bulbs are red-green-blue-orange and the fifth bulb is white. I would prefer one color, say yellow. One good thing, though, is that although the bulbs are white, they actually appear pale yellowish when you turn them on. Sometimes the moon is this color when it is low on the horizon. You know him. However, I don't want white pears on a colored string. In any case, you will need replacement bulbs, you can also buy yellow or purple ones. I was surprised that these C9 bulbs draw about 7 watts each. With a 25 chain, that's 175 watts per string. That's quite a lot. The packaging says not to exceed two strings in series or 350 watts. I agree that the wire is pretty thin and I don't think a third string is a good idea. A replacement extension cord is a cheap and flexible solution. For reference, here in the US, the standard supply voltage is 110-120 volts, and most outlets are rated for a maximum current of 15 amps. Multiply volts by amps to get the power in watts. ( B x A = W ). This means that at 115 volts and 15 amperes, the output power is limited to 1725 watts. As a precaution, subtract a third. That's still a lot of power and a significant hit on your electric bill. LED lights are much more energy efficient, but the lights, while delicate and beautiful on wood, look a little mousy on the house from the street. I estimate that each filament left on from 4:00 p.m. to 10:00 p.m. every night from December 13th to 25th consumes about one kilowatt hour per day, or, say, 12kWh per "twelve days of Christmas.” At 20 cents per kWh, that would be about $2.40 per string. Not bad, but the performance data varies greatly. Hope this helps some Santas.
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