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At least 40 or more, the original home used 6 7 watts, just replaced and felt very bright, a year I don't know if I got used to it or the light faded and I don't think it's too bright, and now I use 6 20. In fact, if there is a suspended ceiling, it is particularly bright to walk around the light bar.
If there is a ceiling, buy some warm light strips according to the length of the groove, buy 3-5 LED spotlights for the background wall, and use about 15W ceiling lamps or crystal lamps or dining chandeliers for the dining table.
16 square, very small. LED fluorescent lamps are sufficient. The general power of the integrated ceiling lamp is quite large, and it must be used if it is enough at 50W.
The light efficiency of LED lights is higher, you can choose to compound tile per square meter for reference, 40 square meters may need 60-80W LED lights. >>>More
Generally speaking, the number of square meters of the living room and the wattage of the LED lights are based on the ratio of 1:1, such as a 50-square-meter living room can choose 50 watts of LED lights, so you can decide the wattage of the LED lights according to the size of your living room.
It's called an aluminum gusset plate, knock a gap between the seams, break down according to a board, and buckle it off with all your might.