Led Portable Flexible Adjustable Work And Study Foldable Charging Desk Lamp

Ref Price:
$2.58 - 3.61 / pc
Loading Port:
Shenzhen
Payment Terms:
L/C,T/T
Min Order Qty:
1 Piece pc
Supply Capability:
2000 Pieces Per Day pc/month

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Product Description:

LED Portable Flexible Adjustable Work and Study Foldable Charging Desk Lamp

 

Main features:

1)rechargeable cordless table lamp High Quality LED Table Light

2)Low Voltage Eye-protection Study Lamp

3)collapsable and portable

 

Product Description :

1)Reading Lamp With Rechargeable Battery

2)Production Fold Dimention:75*132*60mm

3)Production Unfold Dimention:75*280*132mm

4)Production Net Weight:410g

5)Production Fold:3 Folds

6)AC Charge with 0.6m White Electric Wire

7)Production Color:Purple/Green/Orange/Blue

8)Production Material:ABS+PC

9)Production Rechargeable Battery:4V,1800mAH

10)Productiom LED (SMD)Quantity:24pcs

11)Production Certification:CE,RoHS

12)Production Battery Charging Time:8-10hours

13)Production Solar Charging Time:8-10hours

14)Production Lighting Time:6-8hours

 

Application:
1.Table lamp
2.Bed lamp
3.Office lamp
4.Reading lamp
5.Working lamp
6.Emergency lamp
7.Radio online
8.Music speaker
9.Exquisite gifts

 

Delivery:

Shipping Service

Estimated Delivery Time

DHL

2-8 business days

FedEx

3-8 business days

TNT

2-10 business days

UPS

1-7 business days

EMS

6-14 business days

ePacket

7-12 business days

China Post Air Mail

7-15 business days

China Post SAL

14-30 business days

By Sea

30-40 business days

1. 3-5 business days for Sample Orders; 7-15 business days for Bulk Orders for Bulk Orders.

2. "Business days" means Monday-Friday, excluding holidays.

3. DHL and UPS cannot ship to military or P.O. boxes address

4. The Shipping Service above is for reference only, for any other questions, please feel free to contact us.

 

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Q::Rechargeable led bulbs on the desk lamp is a few volts?
Galvanic battery 4.47 V, the brightness of the light brighter than 4.2 V now, are you? You can try the 5 v charger, should be able to increase brightness. Brightness increased, however, is to rely on the voltage, made for light-emitting tube, will reduce the service life. This is the price.
Q:Hurry, common desk lamp is ac or dc output, and energy saving LED lamp?
Common desk lamp is communication, voltage 220 v, 12 v in the majority; Most energy-saving LED lamp is a dc output voltage international big brands is 9 v, domestic brands generally 12 v.
Q:Led lamp generally not transformer, why also said some led desk lamp radiation levels
There will be no frequency transformers high-frequency transformer (a lot of switch power supply are to be used), and high frequency transformer has radiation. If there is a low frequency transformer (it does not need to high-frequency transformer) but not excessive radiation
Q:LED lamp general 6/7 w is very bright, is too light is bad for your eyes
Charging circuit disconnection or the charger itself has a problem
Q:Charging indicator has been on desk lamp, led lamp is not bright after rotary switch
After the first thing you should fill the electricity, using a multimeter to check the battery (black pieces) to have electricity, normal about 4 v, no electricity is the battery is bad, to replace the battery. If there is electricity, check the circuit board components have obvious damage, there is a circuit board is broken, no potentiometer (knob) could be broken. Can now be considered your element is broken, makes the led indicator light, hope to adopt!
Q:New LED small rechargeable lamps filled with electricity or running
Hello: the led rechargeable lamps common there are two types of rechargeable batteries, one kind is nickel metal hydride (cadmium), one kind is lead-acid batteries. The former has memory effect, so it will run out of electricity, electricity is enough, to be filled when it can guarantee the capacity of the battery; The latter, on the other hand, when when LED signs change dark don't use, need charging immediately, no need to pay special attention to when charging, but with time is long, the electrolyte will evaporate, so let's add every few months. Thank you very much!
Q:What kind of USB power adapter for a LED light source is a USB power supply lamp?
Usb LED lamp current is very small, only a few tens of milliwatts, can use any usb adapter 5 v.
Q:LED lamp stroboscopic serious, can you tell me the reason?
Use digital camera LED lights have similar moire interference, should be a digital camera sensor scanning frequency and multiple leds blinking frequency with a certain relationship, lead to no photosensitive sensor some particular locations and appear black stripes. According to the phenomenon that the LED lamp is resistance capacity drive is premature. In general, if the LED lights use resistance capacity device driver, then stroboscopic frequency twice of the ac power frequency, i.e., using flash frequency 50 hz alternating current while the frequency is 100 hz, with 60 hz ac for 120 hz - under the frequency, the human eye or is there a way to identify: the five fingers outstretched rapidly oscillating in the lamplight, if can see "a lot of fingers in the middle of the swing range (shadow), you can judge the LED use the low frequency pulse power supply driver. If the LED is used inverter type constant current power source, then stroboscopic frequency up to 40 ~ 200 KHZ, wiggle the fingers in this light, the human eye of persistence of vision has been unable to form such as "image of guanyin", so it can be the difference between the judgment
Q:What kind of light the lamp that shield an eye?
The desk lamp, LED is better, although it will still more expensive than energy-saving lamp or the light bulb, but value: the choice of the LED to have the following key points: first, to see the shape of the LED lamp bead, must be patch (that is, a piece of aluminum substrate has a lot of square yellow dots), if the little lamp bead is spherical or several high-power lamp bead, decisively abandoned, because those are the old, bad for your eyes, just before the LED haven't rolling development to the mature technology;
Q:How to charge the LED lamp
Lead-acid batteries used in dozens of pieces of low-grade called students or children desk lamp, rechargeable light most of the products will not change color, usually from a few hours to ten hours. Lead-acid battery charging requirement after filled with a floating time state, with the changed the user capacity and circuit design is difficult to grasp, because charging time short, filling is too long to form a rechargeable battery life shortened, theonly low-grade products without charging protection circuit, only carefully study the product description. Rough judgment: try every half hour after 2 hours filling light observation (do not charge while light), and if no longer increases should be full of light is the brightest and desk lamp brightness, floating charge time same again can Hope to adopt. thank you

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