Not big size .and use the best material k:k 5 layer
Extremely low energy consumption
CE Rohs certification
Very little heat generation
Extremely long life, >50,000 hour's lifespan.
Extremely high brilliance
Touch switch on/off
Hotels, restaurants, coffee bars, home,office, reading room and local lighting…..
2.Sample can be delivered in 7-10 working days
3.Shipping freight are quoted under yours
4.Shipping port: Shenzhen,China main port
5.Discounts are offered based on order quantities
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3.Additionally, we also offer OEM and ODM service
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Q:Desk lamp battery charging why not directly connected light emitting LED lights
Ordinary pressure drop with the silicon diode rectifier is about 0.7 V, the series circuit is higher after the voltage sharing the 0.7 V, so your LED can work properly. Can be a little bit, the pressure drop on the diode wasted energy is 0.7/3.3 = 21, see, there are twenty-one percent of the energy contribute nothing.
Q:The study USES the LED lamp?
LED lamp is good ah. But this depends on the technology of the manufacturer and, in some cases, different brand products, the effect is not the same. My neighbor's child has been with panasonic a LED desk lamp, although the price is expensive, but the effect is good, still so good eyesight. Sometimes, to be willing to pay, have a good enjoy. Of course, not the more expensive the better, suits own is the best. search The above is a personal opinion, only supplies the reference
Q:What led small desk lamp general battery
If bought from the market, it mostly lead-acid battery, the battery is rechargeable, a wide range of application, the cost is low, but with memory effects. Some high-grade lithium battery, the battery energy density is high, the performance and life are better than the former
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:A led desk lamp always zi zi ring is how to return a responsibility?
Inside thrum have poor contact, look at the best, don't have accidents
Q:LED lamp, lens type and light type which good,
Besides, desk lamp, desk lamp is the design standard of infinite close to the sun, because artificial forever than nature. So now the LED lamp like stressed without glare No stroboscopic, no radiation it is for this reason, who is more close to the sun, who is better. Lens is concentrated, shoot the lamp to use more widely. But the lamp's goal is to the sun, condenser is used to make fire, not reading, so the desk lamp of type lens to eliminate. But why want to do the desk lamp of type lens? To be sure, lens type basic it is inferior goods, a treasure to 28 yuan still pack mail. Because it is very low, LED brightness is not enough, so I had to use a lens to concentrated, more brighter. Here again there is a drawback, because leds are more than one, generally has more than 20 a desk lamp. Every one have a focusing lens, the end result is to write ghosting, seriously affect vision. So, choose planar light is better, the use of the sun in the standard.
Q:Consult the LED rechargeable lamps not to save battery What do I do
Rechargeable battery for a long time will dry up, also can't charge into the electricity. There are quite a most batteries still can repair good,. Carefully open the sealing with a small needle to fill some of distilled water, if can't find the distilled water used to drink pure water to also go, but remember that not too much, can see the wet inside. After filling water seal sealing again. This way can indeed repair quite a most can't use the battery.
Q:How many watts appropriate general led desk lamp
Advised to choose a well-known brand LED bulbs, LED bulbs now the price is not expensive,
Q:LED bulbs can put in the desk lamp of adjustable brightness?
can But there is a very troublesome problem stroboscopic Normal LED dedicated power supply, are constant current And the frequency to more than 100 hz Standard of 50 hz power frequency electric, will have a stroboscopic Some leds obviously, some is not obvious But even if is not obvious, after a long time also feel dizziness, eye fatigue
Q:How long will leds last?
Leds biggest characteristic is high efficiency, long life and light. You said it is durable? As for the price will be much more expensive than ordinary light bulbs, specific how many I can tell.