Projection light is also called spot light, projection light, projection light and so on,usually use for decorative, its appearance is round and square, because generally have to consider the reason for heat dissipation, so its appearance and the traditional projection light still have a few differences.  It is mainly used in single buildings, historical architectural complex exterior wall lighting, building light and external penetration lighting, indoor partial lighting, green landscape lighting, billboard lighting, medical culture and other special facilities lighting, bars, dance halls and other entertainment atmosphere lighting.  

Because need to consider heat dissipation and different application environment, there are some differences on the appearance of the projection lamp, in fact, the principle is roughly the same.  LED lamp is mainly composed of LED light source (also known as LED lamp bead),LED power supply (also known as LED driver, transformer), shell, waterproof gasket and waterproof glue.  LED light source, drive quality is excellent, waterproof is good, the shell material is thick enough (can meet the light source, power work generated by the heat emission), the projection lamp basically will not have a problem.  So, if the LED projection lamp is broken, there is no light, a flash, sometimes bright,sometimes slight light, how to do?  I’ll tell you how to repair and replace it today.  

LED projection lamp is broken, mainly because of the light source and drive, the most important is that the light source and power supply are not good.  If you have a tool that can check it, you’ll know which one is broken. Here are some general reasons why the LED projector doesn’t turn on:  

1, the power supply is broken, no electricity: most of the lamp is broken, and the power supply provides stable working voltage for the light source.  

2, the light is broken, not bright lights: look at the lights, the sealant location have black spots, the spots are caused by two reasons, the first to use for a long time, the lamp bead temperature through high temperature glue and phosphor powder form, there is another reason is the high current power supply (this is the power supply is not stable, it is possible that the poor quality of the light source), the lamp bead itself causes such as open circuit or necrosis.  

3, line solder spot virtual welding, resulting in no power: the integrated lamp bead inside the light is connected with two lines, the lamp bead is virtual welding, fake welding, cold welding, power input line is loose connection point, disconnect, etc., check whether the drive connection line is damaged.  

4, light lamp throw into the water: this is waterproof treatment is not done, this consequence may lead to light source, power supply are burned,

It’s almost hopeless,if they understand the situation,they can change the light source and power supply, when necessary, you can contact the manufacturer’s after-sales service, the main reason is the quality was bad.  

The projection lamp is broken, can you repair it yourself?  LED projection lamp can be repaired, you can also find professional production of LED lamp manufacturers to help repair.  Of course, general companies are not willing to repair, because repair a lamps and lanterns much trouble than the production of a lamps and lanterns!  It is recommended to buy lamps with slightly better quality when buying them at ordinary times, and of course better quality will be more expensive!  Good lamps and lanterns manufacturers will guarantee the quality can be more than 2 years, in the warranty period manufacturers will give you a solution.  How to identify poor quality projection lamp?  https://www.kcobled.com/flood-lighting/

1, look at the material: heat dissipation depends on the material, choose aerospace polymer materials, excellent heat dissipation performance, high temperature resistance, electric shock proof, more portable.  Currently, high-power leds have limited light efficiency, with most of the rest converted into heat.  If heat energy cannot discharge effectively, will affect the service life of lamps and lanterns directly, so loose heat is very important.Must choose good heat dissipation lamps and lanterns!  

2, look at the wattage: 100W Some manufacturers can not do so high, may only be 50W or 75W, commonly known as 0.5W and 0.75 watts.  To test the power, just buy a multimeter and actually measure it.  Light source chip quality and size, in order to reduce costs and improve competitiveness, manufacturers with low quality insufficient W lamp bead.  You can count the number of integrated beads, with all the chips in them, but they are small and low in brightness.  This is the phenomenon of short weight that people often say, but some consumers may not have professional tools to check out.  

3, look at the seal: waterproof is done well, sealing is done well, it is not easy to water damage, that is to say, waterproof performance is good, as long as the lamp shell is good, plus a good seal, must be IP65 grade or more.  Cast light outdoor rain, moisture-proof line, soak in the water for a long time there are security risks, it is recommended to use professional lamps in the water, such as underwater lights, buried lights, etc., this encapsulation is tight.  

4. Look at the power supply: it may be disassembled to look at the power supply. In order to save cost, some manufacturers have not added a waterproof epoxy resin to the power supply.  The power supply is assembled from a number of electronic components, which are aged and tested before being assembled into a projection lamp.  

The life of the power supply directly affects the overall life of the lamp, specific consulting business on the drive of various parameters, such as output voltage and current, working temperature, protection level and so on.  The power supply of the light lamp is to do glue waterproof treatment, I have even seen some manufacturers in the power supply of sand to deceive consumers.  Take the 30W LED power supply, there are several pieces, there are dozens of pieces, which is actually a lot of famous.  

5, look at the process: the quality of the whole lamp and lamp power supply, light source and sealing strip, cable thickness, the use of thermal silicone grease, workers’ process level (degree of care, welding process), small workshop workers do not wash their hands don’t even say those antistatic clothing.

Since CAS-Ceramic Optoelectronics Technology Co.,ltd established, https://www.kcobled.com/k-cob-led-flood-light-250w-300w-product/ the company has gathered a group of LED industry elites, LED heat dissipation technology, drive stability technology, light efficiency improvement technology,Product quality has been recognized by the peer and the majority of customers.