Straw hat light emitting diode
Straw hat light emitting diode are common plug-in packaged LED DIODE . They are named straw hat LED DIODE because they look like straw hats. Their sizes are mainly 5mm, 3mm, 8mm, and 10mm. The luminous colors are: red, green, orange, blue. Color, green colloid color: transparent, colored, foggy.
Straw ha light emitting diode, also called straw hat light emitting diode, were a star in the early lighting field.
Of course, it can still be seen everywhere in traffic lights and outdoor advertising lights. But do you know how many watts a straw hat lamp bead has?
In fact, there is no unified answer to this question?
how to say?
Because a watt is a unit of power. Power = product of current and voltage.
Generally, the voltage of straw hat LED light emitting diode is between 2.0 volts and 3.4 volts, and the current is between 20 mA and 60 mA. Therefore, the power of an LED lamp bead is approximately between 0.04 watts and 0.20 watts.
Of course, due to some material, technology, and process reasons, some brand lamp bead manufacturers, such as Taihong Optoelectronics, will use high thermal conductivity large brackets and packaging materials for headlight cups. Straw hat lamp beads can be packaged to a single 0.5 watt or more. Infrared lamp with power above 0.75 watts.
High power means high brightness, and high brightness is also accompanied by high heat. Therefore, how to better solve the heat dissipation problem is an important condition to ensure the life of the lamp beads. Therefore, when choosing straw hat LED lamp beads, we must comprehensively consider factors such as its power, brightness, and usage environment.
Are there any special applications for straw hat LED light emitting diode in urban lighting?
Straw hat LED lamp bead is a common plug-in packaged in-line lamp bead, which is commonly used in various lighting and display backlight products.
It is precisely because of the unique appearance of straw hat lamps that lamp bead manufacturers produce various colors and shapes according to market demand. Therefore, in some occasions, straw hat LED light emitting diodecan play a better beautification and decoration role.
For example, in some city night scene lighting applications, straw hat LED lamp beads are widely used in landscape lighting and billboards, etc. Their color and shape can be coordinated with buildings, roads and other elements, such as traffic lights, buildings Lighting, decorative lighting in parks and squares, etc. Create a unique visual effect. Because its light is soft and does not produce dazzling light spots and glare, it can blend well into the surrounding environment and create a warm and romantic atmosphere.
In addition, straw hat LED lamp beads are often used in various holiday decorations, such as Christmas, New Year, etc., adding a strong festive atmosphere to the city. Even at the Festival of Lights, you can make a splash by dressing up.
In general, straw hat LED lamp beads have no special significance in the city, but they can be used as a beautiful and practical lighting and decorative tool lamp to add color and vitality to the city.
Straw hat led
There are many welding methods for LED lamp beads on the chip, and the following is one of the commonly used methods for reference. First, use an electric soldering iron to heat some soldering tin on the positive and negative electrode pads of the lamp bead (the soldering tin must not be too much, otherwise, the positive and negative electrode pads will be connected once heated with a hot-air gun), then use a hot-air gun to heat the positive and negative electrode pads at the same time, after the tin melts, use tweezers to place the positive and negative electrodes of the lamp bead on the corresponding pad.
LED is the light emitting diode, which is a semiconductor solid light emitting device that converts electric energy into light energy. Its core is the PN junction. In addition to the forward conduction, reverse cut-off and breakdown characteristics of the general PN junction, it also has the light emitting characteristics under certain conditions. Its structure mainly includes the following parts: lead, bracket, encapsulation glue, bonding wire, LED chip, solid crystal glue and phosphor. The discoloration failure of LED lamp bead is closely related to its material, structure, packaging process and service conditions. The following will analyze the causes of its discoloration through specific cases.
LED lamp beads are also called light emitting diodes. It has a wide range of applications. Its luminous colors include red light, emerald green light, yellow green light, yellow light, purple light, blue light, white light and orange light. The above is monochromatic light. It can also be made into two or three colors.
The gold wire used to package LED lamp beads contains more than 99.99% gold. It is produced by drawing gold from this material. In addition to 99.99% gold, this gold also contains less than 1% other trace elements. One of the core components of LED lamp bead packaging is gold wire, which is the bridge connecting the luminous chip and the welding point, and plays a decisive role in the service life of LED lamp bead. So how to identify the purity of gold thread?