When purchasing or using laser lights, the core parameters directly determine their performance and use effect. Mastering these parameters can help you avoid pitfalls. First, the output power, whose unit is milliwatt (mW) or watt (W). The higher the power, the stronger the beam brightness and the longer the projection distance. For outdoor use, you need to choose a power of more than 1W, and 500mW is enough for small indoor scenarios. Second, the wavelength, which determines the color of the laser. 650nm is red, 532nm is green, 450nm is blue, and the combination of RGB three colors can achieve full-color effect. Third, the beam divergence angle. The smaller the value, the more concentrated the beam and the more precise the projection. For outdoor long-distance projection, you need to choose products with a divergence angle ≤1mrad. In addition, the control mode, which is commonly DMX512 control, wireless APP control and manual control. DMX512 synchronous control is suitable for large-scale scenarios, and wireless control with convenient operation is preferred for home scenarios. In addition, the protection level (such as IP65) determines its adaptability to the environment, and high protection level should be selected for outdoor use.
