LED bulbs are also a spherical light emitting semiconductor, which have the same characteristics as ordinary light-emitting semiconductors, which are composed of two PN nodes. The current can be converted to light energy through the semiconductor. Can send out visible light, infrared, ultraviolet. However, the light emitted from LED is not fixed, so we use glue glue to guide LED bulbs to give out the effect of lighting we want, that is to say, LED bulbs will not give out all kinds of light at once. The accuracy of dispensing is beginning to be displayed in the quantitative accuracy. For example, the error of 0.01 grams of glue is a tiny error when we don't think about the size of the product, which is unavoidable in manual dispensing. If the product with special requirements for dispensing density, the error of 0.01 grams is usually very serious, because the product of dispensing is very small and very precise. After the accurate setting of the pressure and the time of the glue, the quality of the product is much better than that of the hand glue. In the lighting production in the field of desktop dispensing machine plays a very important role, whether it is the lamp holder and the substrate bonding or lighting chip package needs to be done through a desktop dispensing machine, designed by most small desktop desktop dispensing machine, lightweight and convenient and easy to use, which is responsible for undertaking all kinds of mechanical arm dispensing dispensing the work demands, work can help the user to complete a variety of dispensing irregular path, dispensing manipulator is an integral part of the desktop dispensing machine, through the arm multifunctional desktop dispensing machine can enhance the practical value.