Eye Protection Led Foldable Table Lamps And Desk Lamps
- Ref Price:
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- Loading Port:
- Shenzhen
- Payment Terms:
- T/T
- Min Order Qty:
- 1 Piece pc
- Supply Capability:
- 20000 Pieces Per Month pc/month
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Eye Protection LED Foldable Table Lamps and Desk Lamps
Product Description
1.Power source
Two way insert electricity
Method 1.Electric plug directly use
Method 2.usb connected to a computer or mobile power.
2.Four characteristics
a.The light of arbitrary regulation,more versatile,hidden switches,
which make the product even more beautiful and high-tech.
b.Optional color glass, stylish, durable, and more use of technology .
c.There is USB charging jack , you can plug your computer ,
you can also take a more convenient power.
d.LED light source with low energy , fast response,
long life ( traditional lamp life is typically 3000-4000 hours,
while LED lights up to 50,000 80K hours ) .It’s Green,
mosquitoes do not move , the real lighting environment,
comfortable, don’t feel fatigue . it is the real green light.
3.How to open the light(Screw position in the upper left Packaging jam)
It adopt promise dimmer switch
4.Specifications
Color | Apple green, golden sand , blue sky |
Specifications | High:66cm Base thickness:0.8cm width:9 cm |
Material | Aluminum , colored glass |
Switch | apolar adjust the brightness,can do nightlight |
Light source | LED |
Voltage | Input 220V,output 5V |
Power Consumption | 4W |
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Packaging & Shipping
1. Fast way: by express courier, such as DHL, FedEx, UPS, TNT, EMS.
2. Cheap way: by air, by sea shipment.
High quality, Factory price and Best services are our mission!
Our Services
1.All items have 12 months quality guarantee, a lifetime technical support.
2.Custom design shape and logo, for large amount,
custom logo available for free.
3.Professional technical supports and great after-sales service.
4.Special discount of our distributors or agents in their area.
5.One -stop security solution provider, can help you save time and costs.
6.Fastest delivery and safe shipping way.
7.Feedback quickly: online service and reply your inquiry within 8 hours.
8.Payment Terms:
T/T, Western Union, Cash
- Q: Are LED lights compared to dc lights?
- 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. Leds are English light emitting diode (LED), its basic structure is an electroluminescent semiconductor chip, silver white glue or adhesive curing to the bracket, and then use silver or gold wire connection chip and circuit board, and then sealed with epoxy resin around, protect the internal core, final installation of the shell, so the LED of the seismic performance is good. Using field involving mobile phone, desk lamp, household appliances and other daily household appliances and machinery production. DC (Direct Current, DC), also known as the "constant Current power", a constant Current is a kind of Direct Current (DC), is the Direct Current (DC) are the same size and direction, it is discovered by Thomas Edison. In 1747, the United States put forward the law of conservation of charge, according to the experiment of franklin and defines the term of positive and negative charges.
- Q: The led lamp charging more than 24 hours have what dangerous?????
- 1, the desk lamp of authentic qualified, the battery charging protection circuit for battery will not overcharge, adequate electricity stopped. 2, LED desk lamp is with LED (Light Emitting Diode) the desk lamp of the light-emitting Diode as Light source, LED is a solid-state semiconductor devices, it can be directly put DianZhuan into Light. Advantage is the light source direction is good, green environmental protection, long service life.
- Q: Led lights can use how long
- Leds are not only have the characteristics of energy conservation and environmental protection, as well as long service life, general use 10 to 20 years.
- Q: The LED rechargeable lamps can charge while lighting? The reason?
- resistance capacity is determined the capacity of capacitance current, and the charging current is very small, generally in 1 u for many, the charging current is about 70 ma, 13, and light bead is usually a 20 ma, that is the lamp bead is 260 ma, so four hours to point to a hour, if charge while using, then charge electric light enough to use, the end result is the battery voltage drops to light bead, is about 3.2 V, that is to say the battery will discharge, after filling is filling in a difficult, because with lead-acid batteries.
- Q: Long amount of brand of LED desk lamp capacitor charging Fried v100uf 50
- This kind of LED desk lamp, 220 v power supply is to step down by means of capacitance current limit, once the no-load, after rectification voltage will be increased to 310 v, 220 v x under the square root of 2), seconds kill the capacitance of the withstand voltage 50 v. So this failure, you must first check whether the no-load and load of power supply circuit is normal battery, check the battery cables are broken, the charging current limiting resistor is burned, if these are no problem to check current limiting capacitance itself isn't breakdown (usually the breakdown causes 220 v over-current, empty trip meeting).
- Q: Could you tell me how to repair have been flashing led desk lamp open,?
- Light flashing, if is to use the adapter, it is possible that the adapter, try out in later.
- Q: Study desk lamp high-power led is more appropriate
- Preferred the desk lamp of dc, because traditional 220 v ac 50 hz residual current fluctuations, causing light stroboscopic phenomenon. Stroboscopic is easy to cause eye fatigue, vision loss, deepen myopia. And preferred light yellow light, the light is warm, warm and comfortable, stable, not dazzling. Another is to see whether there is ultraviolet (uv) radiation.
- Q: Led lamp is broken. Who knows what reason be? How to repair?
- There may be two reasons, one is the power source capacitance is broken, the second is one of the lights is out of question. The first reason accounted for 70%, if that's the capacitance is broken, LED lights have to change new.
- Q: How many watts of led the desk lamp that shield an eye with good students
- LED the lamp that shield an eye is generally low wattage, not too high, many big brands of LED desk lamp dimming function, need not too care about so wattage. And wattage and is good for your eyes there is no direct relationship, just a matter of personal habits.
- Q: The study USES the LED lamp?
- Because the study had better use LED lamp, LED light source soft, height is adjustable, with a long time, and energy saving
Send your message to us
Eye Protection Led Foldable Table Lamps And Desk Lamps
- Ref Price:
-
- Loading Port:
- Shenzhen
- Payment Terms:
- T/T
- Min Order Qty:
- 1 Piece pc
- Supply Capability:
- 20000 Pieces Per Month pc/month
OKorder Service Pledge
OKorder Financial Service
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