The specifications and dimensions of the linear optical groove vary with different manufacturers and models, and generally include the following aspects: 1. Length: The length of linear optical groove is generally 1 m, 1.2 m, 1.5 m, 2 m, etc. Some manufacturers can customize the length according to customer requirements. 2. Width: The width of linear lamp groove is generally 30mm, 40mm, 50mm, etc. Some manufacturers can customize the width according to customers' requirements. 3. Height: The height of linear optical groove is generally 30mm, 40mm, 50mm, etc. Some manufacturers can customize the height according to customers' requirements. 4. Material: Generally, the materials of linear optical groove are aluminum alloy, stainless steel, plastic, etc. Linear optical grooves of different materials have different characteristics and uses. 5. Light source: Generally, the light sources of linear lamp troughs include LED lamps and fluorescent lamps. LED lamps have the advantages of energy saving and long service life, and are the most widely used light sources at present. In a word, the specifications and dimensions of linear lamp trough should be selected according to actual needs to meet different lighting requirements.