There are many kinds of parameters for led lamps , which give consumers more choices, but also bring troubles to consumers. How to buy led lamps that satisfy themselves in the dazzling LED table lamp market? Let's take a look at how to buy led desk lamps with Xiaobian!
Led desk lamp
First, look at the appearance of the purchase
1, look at the appearance of packaging
The state mandates LED lamp manufacturers to mark the following contents on the product packaging: rated voltage, voltage range, rated power, and rated frequency. Generally speaking, the quality of the trademark printing of high-quality products is good, the logo is clearly identifiable, and there are manufacturers' trademarks, addresses, contact information (not the kind of only one mobile phone number), after-sales information and related certification marks.
2, see if there is 3c certification
At present, China has a mandatory national standard "Safety requirements for self-ballasted LED lights above 50V for general lighting" (GB24906-2010), to see if there is any indication on the packaging. If there is CE certification, the US ETL product certification is better - in short, the more certification, the more guaranteed.
Led desk lamp purchase
3, test bulb
After seeing the led bulb, you should check the appearance of the lampshade for cracks and looseness, whether the various interfaces are tight, and whether there are traces of repairs. If you can, unscrew the lamp cover and you can see how the LED is soldered to the external circuit. Of course, you should choose a product that is full, shiny, and has no solder joints.
Second, from the use of the purchase
At present, most LED manufacturers provide two color temperature LEDs. The unit of color temperature is Kelvin (K), the color temperature of red light source is between 800K and 900K, the color temperature of yellow-white light source is about 3,000K, and the color temperature of white light source is about 5500K. The color temperature of the color light source is between 8,000 K and 12,000 K. The color temperature of the light source is selected according to personal preference. For example, if someone likes a warm color light, then he can choose a color temperature of about 3,000K.
Led table lamp use
1, warm white light
Use a milky shade to weaken more light, make the light look softer and look more comfortable. It is generally used for decorative atmospheres - warm white and natural white warmness will give a warm, warm feeling, suitable for Used in hotels, hotels and bedrooms. Not only for decoration, but also for lighting that is closer to the eye, warm white is a better solution than white.
2, white (white light)
The translucent lampshade allows the light from the diode to penetrate as much as possible. Many shades have a transmittance of more than 95%, making it more suitable for use as a display for illumination. Give people a cool and refreshing feeling, used in the office, the living room is more illuminated.
Third, look at the radiator purchase
1, temperature
It must be noted that LED temperature is one of the most important factors affecting the life of LED. A good heat sink is the guarantee of its longevity. Because when the ambient temperature rises, the internal resistance of the LED light source will decrease. If the power supply is stabilized, the operating current of the LED will increase. When the rated operating current is exceeded, the service life of the LED product will be affected. Make the LED "burned out".
Led table lamp material
2, quality
Some manufacturers in the mall promote the quality of lighter, lower prices, will not decay, no leakage, etc., in addition to the unscrupulous compression of production costs is the use of thermal resin plastic as a led heat sink material. A general radiator must use at least aerospace aluminum, and a higher-end anodized aerospace aluminum can be used as a basic guarantee for tens of thousands of hours of life.
Any product purchase, we must consider the manufacturer, price and parameters, there are many manufacturers of LEDs on the market, the product quality is very different, the price of led is transparent but the finished product is very messy, from a few dollars to more than 100 pieces of a led , the materials will definitely be more or less different, we must pay attention to these. The above is the relevant knowledge of how to buy led desk lamps, I hope to help you buy led desk lamps, more renovation details, please continue to pay attention to the net.
Changing Bags are becoming more and more popular as regular items for babies and parents. Whether it is a long-distance travel or a short trip, the Mummy Bag provides important convenience for babies and parents. The popularity of mommy bags has caused new parents to pay attention to infant travel, not only psychologically but also physical changes, with great significance.
Baby Changing Bags,Changing Bag,Changing Bag For 2 Kids,Black Baby Changing Bag
JOYBABIES PRODUCT CO.,LTD. , https://www.my-joybabies.com