The light strip of the ceiling should be 15 cm thick or 20 centimeters, and the four circles do not

As shown in the figure, the height of the light trough is 20cm, and the height of the front shield of the light trough needs to be 7 to 8 cm. The main reason for leaving the width on the top is to facilitate the installation of the light strip, and another reason is to ensure that the illumination angle of the light will not be covered.

I don't understand what you mean by ceiling, if it is a corridor ceiling with spotlights will be brighter, the light strip is darker, if it is a living room, it is recommended that the light strip and spotlights are installed, which is more decorative.

Application range of light strip:

At present, it has been widely used in buildings, bridges, roads, gardens, courtyards, floors, ceilings, furniture, steam'Cars, ponds, underwater, advertising, signboards, signs, etc. on the decoration and lighting, to a variety of festivals such as Christmas, Halloween, Valentine's Day, Easter, National Day, etc. to add infinite joy and festive atmosphere, it with tenacious vitality into the advertising, decoration, architecture, commercial, gifts five advantages of the market, is widely used in the building wheel corridor, bridge, guardrail, hotel, forest, dance hall, advertising decoration places. >>>More

There is not much restriction on the light strip slot from the top, as long as it is convenient to paint, usually 5 to 10 cm!

Of course, you need a keel, which is easy to crack and deform without a keel.