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Household downlight opening size standard Home downlight installation knowledge

The downlight is simply a screw cap. This kind of lamp is more suitable for installation on the ceiling, because this does not need to damage the wall, only need to leave the lamp hole on the ceiling, then the standard size of the household downlight opening is what? What are the installation knowledge of home downlights? Let's take a look at the Klaiyi Lighting Factory below.

Standard size of openings for household downlights:

1. Common downlights come in three sizes: large (5 inch), medium (4 inch) and small (2.5 inch). Divided by device mode: embedded downlight and surface mounted downlight. According to the arrangement of the lamp tube: vertical downlight and horizontal downlight. Divided by place: home downlight and engineering downlight. Divided by the number of light sources: single plug downlight and double plug downlight. According to the anti-fog status of the light source: ordinary downlights and anti-fog downlights. Divided by size: 2 inches; 2.5 inches; 3 inches; 3.5 inches; 4 inches; 5, 6, 8, 10 inches. Inch refers to inches, and refers to the caliber of the reflective cup inside.

2. Selectable models: vertical straight screw downlight, vertical straight plug downlight, horizontal straight screw downlight, horizontal straight plug downlight, anti-fog horizontal straight screw downlight, anti-fog horizontal straight plug tube Lamp, anti-fog vertical straight screw downlight, anti-fog vertical straight plug downlight. Household downlights are generally of two sizes: 2.5-inch opening 80mm, 3-inch 90mm. Common specifications of spotlights: 63MM, 48mm.

3. The common size of the downhole of the downlight is: 2 inches, 2.5 inches, 3 inches, 3.5 inches, 4 inches, 5 inches, 6 inches, 8 inches: all refer to inches. 1 inch = 25. 4mm is the industry that the general opening is 4 inches, that is, the opening is 10cm, and the spotlight (ceiling light) opening is generally 45mm.

4. Size specifications of downlight: A. No need to open holes, directly install downlight, various sizes are 2.5 inch, 3 inch, 4 inch, 5 inch, 6 inch 2.5 inch outer diameter size: 9.1CM , 3 inch outer diameter size: 10.8CM; B, downlight specifications are fixed.

5. The standard size of common downlight openings is: 2 inches, 2.5 inches, 3 inches, 3.5 inches, 4 inches, 5 inches, 6 inches, 8 inches: all refer to inches. 1 inch = 25.4mm, that is to say, the general opening is 4 inches, which is 10cm.

6. The common sizes of the openings of the downlights are: 2 inches, 2.5 inches, 3 inches, 3.5 inches, 4 inches, 5 inches, 6 inches, 8 inches. The inch here refers to the inch, not the ancient measurement of length, inch, ruler, etc. 1 inch=25.4 mm=2.54 cm (1inch=2.54 cm). 3-inch LED downlight size parameters: opening (Φ90)-table page size Φ112 × H30 power 5W.

Installation knowledge of home downlight:

Generally, household downlights are about 2.5 inches to 3 inches, and the size of the opening is about 70. The general household downlights do not exceed 3 inches, and then put 5W energy-saving lamps in them. That's it. Of course, the brightness of the lamp can be adjusted according to the actual situation.

Pay attention to the installation of downlights. The downlights used in general households are at most 6-8 cm in diameter and 12-15 cm in height, so when making a ceiling, reserve a Space less than 15 cm, otherwise it will be very difficult to install the downlight, the power of the bulb used in the downlight can be determined according to the actual space size.

There is no uniform standard for the distance between downlights. Several downlights are designed on the same surface. When installing, downlights are divided equally according to the number of installations and the brightness of the light source. It can also be determined according to the indoor space, which needs to be determined according to the length of the face wall or the ceiling. It can be considered from multiple aspects and cannot be determined uniformly.

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