LED lamp bead common problems and solutions 1, are the problems caused by power supply not normal: 01. Check the power supply power supply have a normal job, designator light had lit up, if there is no light up, please check the power supply have good connection; 02. Check to see if the lamp bead wire with power supply anode connection is good, is there a reverse phase, if you have the above problem, please correct connection. 2, LED lamp bead to the requirement of voltage: Nominal 3 v LED lamp bead, in fact, different color also have different requirements [...]

On the market of LED lamp lens change rapidly, different places and different customer need optical effect also vary widely, therefore welcome the challenge of LED lamp lens design. How to design a high light transmittance, high grade, low-cost lens has become one of the main research fields of LED to shoot the light with the light. It is well known that the LED lamp product replacement fast jaw-dropping. The development of the LED lamp lens is by leaps and bounds. But on the whole, the most attention on the market or the visual effect and the whole lighting effect [...]

How to install and use Ceiling lamp? (1) install the ceiling in the masonry structure, the pre buried bolt, with expansion bolts, or nylon or plastic plug plug; do not use the wedge. And the bearing capacity of the fixed parts should be matched with the weight of the ceiling lamp. In order to ensure that the ceiling lamp is firm and reliable, and the service life can be prolonged. (2) when the expansion bolt, the bolt should be selected according to the technical requirements of product specifications, the hole diameter and buried depth should be consistent with the specification [...]

Small pitch LED display technology advance broke the LED display can only be used in the field of outdoor law, with exquisite degree of quality continuous improvement, and low light high ash technology to solve the problem of small spacing, LED display in the indoor display engineering field, especially the control room and other high-end display market launched a shock. Eight dimensional analysis of small spacing LED engineering display advantage Comparison of mainstream display technology In the field of indoor engineering display, small spacing LED display as a latecomer, you need to deal with the competition from the DLP splicing, [...]

Why is the highest price of LED lamps? Recently, the public Liu to the supermarket to buy light bulbs, bulb shelves can let him pick hualiaoyan a superb collection of beautiful things. "In addition to the traditional incandescent and energy-saving lamps, and a LED lamp, I don't know how to lighting the lamp?" incandescent lamp, energy saving lamp, LED lamp which cost-effective? Found through experiments, home lighting or cost-effective LED lamps. LED lamp is 16 times more expensive than incandescent lamp At present, incandescent lamps are facing the situation is gradually eliminated, energy-saving lamps become mainstream in the market. The [...]

Design of side guide light LED backlight I. Introduction As human society entered the era of knowledge economy, information and knowledge to achieve real-time, with terminal equipment to achieve the exchange of information display technology is developing rapidly, as the LCD display technology is one of the developed very fast, because LCD has its own shortcomings in no light, so most applications require supporting backlight. The backlight used is incandescent bulb, cold cathode fluorescent tube, EL and LED lamps, etc.. Each backlight technology has its own characteristics in a specific application environment. One of the advantages of LED technology has [...]

Chip is the core component of LED. At present, many domestic and foreign manufacturers of LED chip, and chip classification has no unified standard, according to the power classification, there are a large power and small power; if classified by color, mainly red, green, blue three; if the classification based on the shape, generally divided into square plate, two kinds of wafer; if according to the voltage classification, is divided into low voltage and high voltage DC DC chip chip. Comparison of domestic and foreign chip technology, foreign chip technology, the domestic chip production is not heavy technology. Substrate material [...]

LED era, we in all aspects of life are visible in its presence, whether it is a car field, intelligence or industrial fields, because of its high efficiency, energy saving, long life, environmental protection and other features, the optional scheme has now lighting technology, and has been applied in lighting. One of the key factors that drive people to pay attention to LED lighting technology is that it greatly reduces the energy consumption and can achieve long-term and reliable work. Today, we will give you a practical extension of the LED circuit from the introduction of LED lighting drive circuit. [...]

First of all, let's talk about what is the LED driver power supply? It can convert the power supply to a specific voltage current to drive the LED voltage converter, normally: LED drive power supply input, including high voltage ac power frequency (mains), low-voltage dc, high-voltage direct current, low voltage high frequency ac (such as the output of electronic transformer). And the output of the LED driver power supply are mostly can change with LED positive pressure drop values and change the voltage of the constant current source. LED core components including power switch controller, the inductor, switch components (MOSfet), [...]

LED is a highly efficient light-emitting diode device, it must work in a constant current environment in order to continue to emit a steady bright light to illuminate the world. The driving power of the pros and cons will directly affect its luminous brightness and light quality. How to choose a good LED filament driving power supply is the key to the manufacture of LED filament lamp with good performance price ratio. At present, there are three kinds of power supply for LED filament lamp: One is about to be out of the resistance capacitance step-down power supply; Two is [...]