The length is 50 centimeters. 1 m = 10 decimeter = 100 cm = 1000 mm is the unit of length.

The unit of length is the basic unit for measuring spatial distance and adjusting the length of human body. The unit of measurement is the scale that people choose to measure the measurable size. Its value is determined by the definition of the unit. The physical standard with the highest accuracy represents the value given by the unit definition, which is called the measurement benchmark of the unit.

Led lamps are also commonly known as LED tubes, LED fluorescent lamps and LED fluorescent lamps. Its light source adopts LED as luminous body. Traditional fluorescent lamps, also known as fluorescent lamps, have filaments at both ends of the lamp. The lamp is filled with trace argon and thin mercury vapor. The inner wall of the lamp is coated with fluorescent powder. When the gas between the two filaments conducts electricity, it will emit ultraviolet light, making the phosphor emit visible light.

Extended data:

The size and caliber of LED lamps are the same as those of traditional fluorescent lamps. The length of T5 lamp, T8 lamp and T 10 lamp are 0.6m, 0.9m, 1.2m, 1.5m, 1.8m and 2.4m respectively.

A centimeter is a unit of length, equal to one hundredth of a meter. Commonly used length units are millimeter (m), centimeter (cm), decimeter (dm), kilometer (km), meter (m), micron (nm) and so on.

Unit centimeter: 1 cm = 10 mm = 10000 micron = 10000 nanometer =0. 1 decimeter =0.0 1 meter = 0.0000/kloc-.

References:

Centimeter Baidu encyclopedia