DIP lamp
This type of lamp has been used since 1960 and is called old or conventional LED lamp. At the beginning of the 21st century, the use of this type of lamp was limited due to its monochromaticity and low brightness, and it was replaced by a better lamp technology. Nowadays, dip lamps are used in traffic lights, city billboards, and displays.
SMD lamp
SMD lamps are one of the latest technologies of the day. These lamps have found their place in today's market due to the many advantages they have over the technology of other lamps. SMT (Surface mount technology) technology is used in the manufacture of these lamps, which adds to the advantages of these lamps. The characteristics of SMD lamps include flexibility, color variety, high resolution, and very small volume. It has better viewing angle and saving energy. In the new construction of this type of lamp, a larger number of chips in the shape of a rectangle are used, most of which are used in the facade lighting of modern buildings. These types of lamps are used for illumination in small lamps, street lights and even for flashing parts in mobile phones.
COB lamp
COB lamp is the newest type in LED lighting system. In general, COB lamps have concentrated and high-quality light. Therefore, these lamps will be a more appropriate choice in places with high ceilings. Since these lamps create local light, they are used in environments such as ports, docks, etc., where the use of LED lamps is not possible. In this type of lamp, due to the greater concentration of diodes, the distance between the chips has been reduced and as a result, space has been saved.
The difference between COB lamp and SMD lamp
The main difference between SMD and COB lamps is in the type of circuit and connections used in them, which causes the following differences in their operation:
COB lamp, compared to SMD lamp, from more diodes on one surface It is formed.
SMD lamp emits more uniform light, while COB lamp emits focused and localized light.
SMD lamps, unlike COB, have the ability to create various light colors by adjusting the output level of diodes, while COB lamps are able to produce one color. has The SMD lamp produces 50 to 100 lumens of light per watt, while the luminous flux of the COB lamp is 80 lumens per watt.
SMD lamp produces less heat compared to COB lamp.
In SMD lamp, wires with gold alloy are used to connect the chips, while in COB lamp, high quality metal boards are used. Used.