How to buy rest assured that the LED lamps

How to distinguish between good and bad LED Par Light, LED Par Light is good or bad, what kind of par light is better, how to buy the rest assured that the LED lamps? 

LED Par light on the current market price of the business reported very far, dazzling, as a layman how to buy rest assured Par it? 

 

Inferior LED lamps mainly in the short-lived (800 small decline of more than 30% -40%). As it relates to many aspects of knowledge, resulting in a lot of people do not know how to choose, here I will give you a rough explain all aspects 

A lamp beads: LED lamp beads by microarrays, silica gel, phosphor, base, frame composition; lamp beads is directly related to the life of the lamp and color mixing is good or bad 

1, the production of microarrays factory due to problems of the production process, the production of each batch of microarrays after sorting and after cutting, will weed out the poor quality microarrays and scrap some inconsistent requirements, these bits and pieces to go to some small packaging factory, then by their packaged into lamp beads. Therefore, the same brand of chips because it is the difference between yield and scrap, resulting in 4-5 times the price-related. 

2, good quality lamp beads using silica encapsulation, poor quality is the use of epoxy encapsulation, check the price with nearly 10 times; while the domestic price of imported silica gel and silica is also a difference of nearly 10 times. 

3, the main difference is that the difference between the phosphor formulation, domestic and imported, is the difference between the best and worst of nearly 10 times. 

So when selecting LED lamps must look brand lamp beads;, the difference between good quality lamp beads lamp beads on the difference between the cost price 3-4 times. 

Our conventional chip lamp beads are imported, 3-year warranty. Not a few months down the brightness will be darker or broken lamps directly. 

Second, the light fades: Brightness refers to the lights dim slowly over time, seriously affect the normal use of lamps; decision is a major factor in bad light or bad light, the difference in thermal structure 

A good LED light fades slowly, at 25,000 hours before the light fades <30%; difference of LED light failure on the fast, point a few months is very obvious dark. 

2, some manufacturers use 1W lamp beads instead of 3W lamp beads, beads through overload currents make light brighter, so beginning 3W LED brightness and almost even more light, but light pearl decline will be very serious, serious shorten life. 

Decline of imports than domestic lamp lights pearl beads, as consumers generally can not directly see the light fades, the simple way to judge the price is mainly imported lamp beads price much higher than the domestic. 

Third, the heat: the same power with quality fixtures and lamp beads, if conditions are not good heat lamp beads at high temperature, the light fades will be great, will reduce the number of lamp life. 

1, LED lamp beads span, under high temperature to make it work long-term, does not take thousands of hours it will die, so high power LED lighting must be installed on the heat sink. 

If we put a direct vacant 1W high power LED lights, one hour after its bottom pillars temperature 110 ℃, it's not that bad LED quality, but when it is necessary to increase the use of cooling devices. 

LED lamps election enough time to look at the adequacy of the radiator surface area and thickness, the thicker the greater the thickness of the surface area of ​​the radiator, cooling the better, there are many manufacturers would have been scattered 100W Par device, used to hold 200W par lights, cooling system so that he will not keep up, the light fades relatively big. 

Fourth, power: Power is the heart of the lamp, the lamp is related to the capacity of 

1, the constant-current drive power supply can be avoided and the LED forward voltage change caused by the current changes, thus ensuring the stability of the brightness of the LED and extending the life of the role; LED if the service life of the constant voltage drive is used to shorten the low-cost . 

2, good power, good heat dissipation, LED luminous flux and inversely proportional to temperature, so the power supply should minimize the use of heat and good design cooling system, thereby reducing the LED operating temperature. 

3, good power with the IC is imported, there is automatic protection function, IC chip is the power cross-flow, increasing the IC can ensure LED life; not with IC in order to reduce costs, that simply can not guarantee the life of the LED ; with IC is generally not used in RC Buck, generally have strobe; you can use the camera in front of a lit lighting products, there is no proof flashing IC to prove that there is no flashing IC; 

4, to see if there PFC, PFC power supply circuit will be more energy efficient. 

Five, motherboard: directly determines the function of the degree of stability and control your lights, for example, we often say that the constant voltage and constant current board panels, you can use the lights on, but better than the constant voltage constant current board would board much. 

Six lens: the lens is mainly secondary optical design, the light angle, the smooth adjustment; similarly a lamp, use a lens with optical efficiency, the effect will be different. 

Seven, Accessories: see wires, interfaces, connectors and other quality and detail. 

Eight, Warranty: good quality manufacturers - Guangzhou Canxing Stage Lighting Equipment Co., dare to be responsible for the quality of LED lighting is a very long time: Can Star stage lighting can warranty for 2 years. 

Nine, Price: penny stock, if you encounter a vendor lamps cheaper than other manufacturers more than 30%, this time do not be fooled 

Buy cheap things we all expect, but so many things than the market price is low, you should be more careful to confirm the parameters described by the supplier whether it is true, to measured it. 

Ridiculously low price of the product, no matter what the reason for the seller. Even at very low prices because costs are not enough, how have qualified guarantee? 

Many ask manufacturers detailed configuration about the product. Want to buy a good product, please do not over lower prices, since it is often not good goods cheaper, better goods are not cheap oh. 

Note that the above points are available for everyone in judging the quality of LED lamps for reference. I hope you can buy the lower the price, the higher the quality of LED lamps.