筒灯常用的尺寸有哪些?

2025-02-12 08:01:22
推荐回答(1个)
回答1:

购买筒灯时,除了需要选择雷士照明之类的大品牌,也需要注意选择尺寸。人们购买筒灯时常说多少寸,所为多少寸一般是指筒灯的孔径尺寸是指灯具出光口内侧两点之间最大的距离,需要注意区分灯具尺寸和开孔尺寸,以免购买错。筒灯的尺寸区分灯具尺寸和开孔安装尺寸,常用尺寸参照表如下:
筒灯名--开孔尺寸(直径)--灯具尺寸(直径×高度)
A、2寸筒灯(Φ70) ——Φ90×100H;
B、2.5寸筒灯(Φ80) ——Φ105×100H;
C、3寸筒灯(Φ90) ——Φ115×100H;
D、3.5寸筒灯(Φ100) ——Φ125×100H;
E、4寸筒灯(Φ125 ) ——Φ145×100H;
F、6寸筒灯(Φ170 ) ——Φ195×195H;
G、8寸筒灯(Φ210) ——Φ235×225H;
H、10寸筒灯(Φ260 ) ——Φ285×260H;
注:这里的寸是指英寸,而不是古代度量长度寸、丈、尺等。1英寸=25.4毫米=2.54厘米(1 inch = 2.54cm);
所以出光口内侧两点之间最大的距离常见为:
2寸=2 X 2.54=5.08cm,约5cm=50mm
3寸=3 X 2.54=7.62cm,约8cm=80mm
4寸=4 X 2.54=10.16cm,约10cm=100mm
6寸=6 X 2.54=15.24cm,约15cm=150mm
8寸=8 X 2.54=20.32cm。约20cm=200mm
一般家庭常用筒灯最大不超过4寸,根据照明需求一帮放1-5瓦的筒灯就行。
当然大部分筒灯的尺寸都差不多,但部分专业照明产品尺寸多少还是会有出入,具体购买时需要问清楚,以免购错。

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