new product table lamp with usb port mini folding tables
Product Advantage 3 Years Warranty Qualified with CE and RoHS certification
High efficiency of energy saving up to 85%
Low light decay, long working life35,000hrs
Light source: 3*SMD3014
Working temperature & Humidity: -20°C~40°C
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1. For all your inquires about us or our products, we will reply you in detail within 24 hours 2. We own well-tranied and passional sales and after- sale services who can speak fluent English. 3. We offer OEM services. Can print your own logo on product , can customize the retail box packing and other things. 4. We have very experienced R&D engineers and we have strong ability to do ODM projects.
Delivery detail: We ship goods by UPS/DHL/FEDEX/TNT express which takes 3~ 7 days to arrive, or by air cargo which takes about one week to arrive , or by sea which takes about one month to arrive , depending on your actual requirements.
Quality Control: 100% of the lamps will be tested and keep lighting for 24 hours to test its quality reliability , and we will also test its temperature after 24 hours' lighting. Then after it is cool we again test 100% of the lamps to see if it still work well . Each lamp should pass all these QC procedures before shipping to customer.
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Q:LED lamp charging and then bad
Due to the charging voltage is higher, it is burnt out, LED lights in after the LED can also be used, but more troublesome.
Q:Led rechargeable lamp, charging is completed, charging indicator light color?
See what colour before charging, then ran a period of time under observation to know, most of them are will change color. Look at the LED instruction before charging, have on the manual instructions.
Q:LED lights it is transistor luminescence is not pure resistance filament bulbs, when dimming voltage changing, the frequency is changing so affect rectifier, sudden high voltage will burn out the LED.
Energy-saving lamps, color rendering index above 80, it has a variety of color temperature. Read a book, I suggest to use 4000 k; High color temperature advantageous to concentrate, but Dazzling; Low colour temperature of concentrate. When reading a book, lamp writes a 1.5 meters, 300-350 lux. So-called energy-saving lamps, is high frequency, otherwise, it is not energy-saving lamps.
Q:Of tubes is said to be good, and some say good leds, which is really good
Incandescent lamp is red light, yellow light is refers to the 2700 k color temperature, most provinces to eyes, fluorescent tubes and LED light is dazzling.
Q:The service life of LED lamps and lanterns is true?
In theory LED (single light emitting diode) life can reach 100000 hours. But after assemble into lamps and lanterns, also related to the life of the other electronic components. That is the life of the LED lamps and lanterns of less than 100000 hours might fail, is not necessarily the LED itself, it is possible that the power of the chip, electrolytic capacitor and other components out first. And now many LED manufacturers, the quality is good and bad are intermingled.
Q:The voltage of the LED lamp is about how much
No, now the best solution is a string of ten. And then in parallel. Voltage is controlled in 32 v, with constant current source driver. Safety, high efficiency
Q:The lamp that shield an eye is after the light lamp or led the good
LED lights Lamps and lanterns of traditional power consumption not only, and will be accompanied by a large number of infrared ray, cause harm to human body, and LED lamp USES high photosynthetic efficiency conversion of LED cold light source, thus fundamentally eliminating the infrared light damage to the human eye. EFE glasses effectively restrain 35% blue light damage to the eyes. Jingdong, Tmall etc are sold. To protect your eyes.
Q:High-power LED the lamp that shield an eye more appropriate
1 year than energy-saving lamps use 80 KWH, take 40 yuan, really want to save money a lot. And national electricity resource gap is big, also do not encourage you to use white definite lamps. 6 w LED is very bright, but a little bit far distance of illuminance are not idle, half reading needs illuminance in 300-500 lx, far from textbooks some big power, small power from the textbook, with your eyes feel comfortable as well.
Q:I buy LED lamp light moving light and shade is how to return a responsibility
Use this kind of desk lamp and your intention, originally is for energy saving eye, in the end it may hurt your eyes, it is recommended that you immediately change other brand of high quality the desk lamp that shield an eye, when choosing comparison and observation, the most basic points, 1, there cannot be any flicker; 2, light color must be pure white; 3, the mi live eyes LED luminous tube array, all brightness light-emitting tube must be consistent; 4 hand touch LED parts, can not have obvious temperature rise. Otherwise it is inferior product.
Q:LED lamp circuit of current more conference appear what problem
LED current assembly LED life expectancy, calorific value is big, long droop decay quickly makes the current big but light from the darkness, also is actually short service life. String or depending on the design of the circuit. The string of reasonable and important. LED type belongs to the current control device, it is recommended that the concatenated as much as possible, control current. But the list of much needed voltage too much is bad for safety. When the number of string reaches the corresponding voltage should be increased and accordingly. Such as lamp had better control transformer within the safety voltage is better, after 24 v, for example, the pressure drop of about 3 v LED, and the best in a 6-7 more appropriate, the branch with current constant flow control device for the LED work, the more number of lights, and the same number again with constant current control, this is more reasonable.