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 in the 4 v lead-acid battery charging problem!
4 V lead-acid battery discharging termination voltage 3.8 V, charging termination voltage should be around 4.6, the last is constant current charging mode, constant pressure finally, 8 to 10 hours with commonly used charging current (one 8 of the charging current of battery Ann hours). I hope it can help you.
Q:Led the desk lamp, electronic calendar watch how to adjust?
This you can seek advice directly on taobao can sell this lamp customer service As I buy after light the lamp that shield an eye also is to have any questions just ask customer taobao sell desk lamp
Q:LED lamp wattage? How much is the smallest biggest respectively?
The main characteristic is to save electricity, under the condition of the same brightness, than the ordinary energy-saving lamps save electricity more than half
Q:Led the desk lamp that shield an eye how to choose?
Eye protection is our life lessons, eye to start at a young age. Students in rapid growth stage, the body should protect the pair of the window to the soul. Eye can reflect on a lot of details, the lamp that shield an eye can greatly alleviate eye fatigue, protect your eyes from harm. The lamp that shield an eye is not adjust light brightness, who can adjust the brightness of the lamp that shield an eye eye function. Is the price is more expensive than ordinary ordinary incandescent bulbs. The lamp that shield an eye lamp luminous color temperature value determines the degree of light is downy, high and low are not good, is suitable for 4000 k to 5200 k. The lamp that shield an eye of 4000 k to 4500 k, the light is slightly red, more soft, suitable for primary school students; And 4500 k to 5200 k color temperature value is suitable for middle school students and its older customers to use. There is good, had better choose light yellow lights for under the yellow light will feel soft and comfortable to read and write, by reading in white, for a long time will feel sore eyes. The choice of the desk lamp that shield an eye still depends on the brand, good brand of the lamp that shield an eye quality guaranteed, the quality is qualified through inspection
Q:Mid-december, folded - 924 led charging desk lamp, the eyes?
100 yuan less than a good desk lamp, it depends on what you mean "good" means good. If it is also the appearance of the, on the Internet that a lot, because of differences in personal vision, this is bad recommendation. But if you want to good performance, good quality, it is estimated that 100 yuan can not be done. As far as I know, a bit better to import medium power LED lamp bead a nearly a dollar money, if calculate by 10 w lamp bead costs 20 yuan, not to mention the adjustable light, color temperature (this is the "good" table lamp) the most important indicators, the cost of the other, "good" lamps on the market at least 300 yuan. Have time to learn about the "account name", it should be on the market the most valuable "good" table lamp.
Q:Are LED lights compared to dc lights?
Basically agree with net friend in front of the answer. The desk lamp of ordinary incandescent light bulbs with energy-saving lamps, bulbs and tubes in the current is an alternating current. Incandescent lamp current is ac mains, 50 hz, on and off the 100 times per second. Filament is high temperature heating, heat capacity to a certain extent, to cool and hot, stroboscopic was not obvious, but low light efficiency, energy saving. Energy-saving lamps, is the mains ac rectifier dc, again for the high frequency inverter (several thousand Hz) communication, energy saving, stroboscopic is not obvious, not like a normal fluorescent lamp. LED desk lamp, the energy conservation, but see, on the market at present basically is a built-in battery, use mains charging can't use the lamp, can light up from the mains before, often charging more than 6 hours, often should charge, so if used in a short time is can, such as to use for light continuously over a long period of time, is not convenient. LED flashlight, with short time, it is very good. If there is no battery, do not need to charge, it is more convenient. Above for your reference.
Q:Are LED lights constantly flashing
OTT electrical appliances shenzhen | ten steps, readily available, the man said I will not repeat the stomach, LED light bulb is very expensive, not necessary. Energy-saving lamps.
Q:Desk lamp battery charging why not directly connected light emitting LED lights
If animal nickel cadmium or lead nickel-metal hydride batteries, their monomer voltage is 1.2 V, then use two voltage is not enough to push the LED, with three high again, then to string a diode to the voltage
Q:LED lamp, lens type and light type which good,
A planar light well. Here's why: surface light illumination uniformity, no glare, not dazzling. Lens type is suitable for use in lighting, such as shops, clothing stores, pictures, advertising board and so on, should not be used for the table lamp with eyes, long time.
Q:Children lamp good choice led lamp is better
Can, LED by natural white light bead (osram), tube made of three primary colors. Starting from protecting eyesight, try not to read for a long time, should have proper rest, look at the distance, eyes