LED Table Lamp Studying Lamp 12W

Ref Price:: $29.24 / pc

Loading Port:: Shenzhen

Payment Terms:: TT

Min Order Qty:: 10 Pcs pc

Supply Capability:: 20000 Pcs Per Month pc/month

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LED Table Lamp Studying Lamp 12W Foldable, free angle adjustable. Lamp head up-down adjustable 180 degree, lamp arm left-right rotatable 360 degree and forward adjustable 90 degree

Advantages:
Eco-friendly-mercury free, no radiation, low carbon
Eye-protection: uniform and soft light effect, anti-dazzle, relieve visual fatigue
3-C temperature light modes, applicable to different study&work modes
LED high purity display calendar
Superb light quality: high luminance light effect, high purity, high color rendering
Foldable design, convenient for travelling
Energy-saving: low power consumption, low degradation, save up to 80% energy
Efficient heat dissipation
Long lifespan(more than 35, 002 hours)

Q:With few desk lamp LED tile good children: Country "GB_50034-2004 building lighting design standard", the residential building lighting standard writing reading class and school building lighting standard - the surface of desk intensity of illumination should be 300 lx, light source color temperature reading class, the middle color (color is white or call sun) 3300-5300 k; Color rendering index of 80 or more; These values are based on human visual physiological and psychological data by a large number of experimental statistical summary science, can choose valuation this table lamp for reference, if the table lamp luminous surface 30-40 cm from desktop and 300 lx illumination, carry light source flux for lm (lumens) 700-700, according to the mid-range market products around 8 w and 10 w (each w90lm), remember that is not consumed power light source power, a lot of people misconstrued, 10 w consumption (input) subtract 2 w is the source power. Color warm color rendering index can't be ignored, especially the price of children eye development period of color vision culture important, many products can not meet the color rendering index (Re) of 80, more than white bluish violet color temperature with the so-called blue light pollution, increase eye fatigue. Luminous flux and color temperature, color rendering index above normal manufacturer must be marked on the nameplate or storyteller packaging. , telescopic type desk lamp if actual use away from the desktop, want to consider to increase the flux and the adjustable light, also do not have strong will accelerate the eye fatigue, finally buy anti glare (such as with opaque chimney design) products, namely children under normal posture eyes should not be directly see light or shiny surface.

Q:The study USES the LED lamp?: The current characteristics of LED lighting and technology, the LED reading lamp is bad, mainly light is not very suitable

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:I'm doing a LED desk lamp, can be through the outside light intensity automatically adjust the brightness of LED, using PWM technology, how to do excuse me: A photosensitive diode, followed by current - voltage conversion and amplifying circuit, and then sent to the AD converter, into a digital signal, for single chip microcomputer. Single-chip microcomputer according to the amplitude to send a PWM control signal to the pulse width control chip.

Q:How bright flowers LED desk lamp, good quality: As long as it's not fake, all have advantages and disadvantages, each lamp with after a long time, he would have. As a general indoor lighting to experience for themselves and the color also has the warm and cool colors, all can have a try.

Q:Led rechargeable lamp, charging is completed, charging indicator light color?: What color is your watch before charging, then ran a period of time under observation to know, most of them are will change color. Lattice nita, photoelectric

Q:How long will leds last?: Comparing to conventional light bulb is very durable. LED in general notes, can be used more than 50000 hours, and some producers to promote their LED can operate 100000 hours. The main problem is that the LED is not a simple operation, no longer its rated life cannot use traditional lamps and lanterns of measure method to calculate. In fact, when testing the LED life, no one will stay beside waiting for it to stop working. However, there are still other ways to calculate the service life of the LED. LED is lasting, because it won't produce filament fuse problem. Leds will not stop working directly, but it will gradually degraded over time. Forecasts suggest that high quality LED after 50000 hours of continuous operation, also can maintain more than 60% of the initial degree of the light. Assumes that the LED has reached its rated service life, in fact, it may still be shine, just the light is very weak. Want to prolong the service life of the LED, it is necessary to reduce or completely dispel the heat energy produced is the LED chip. Heat energy is a major cause of leds stopped working, LED the life of the related to LED chip and ELDerly drivers.

Q:I charge the battery of LED desk lamp is broken, can put the cell phone battery received above?: LED lamp standard current to 20 ma, just meet this condition

Q:LED lamp rushed into electricity, no battery is bad, but is not into electricity, charging indicator light (not bad) didn't also bright, is how to return a responsibility?: The current charging lamp pass much, just buy a new can also, the longer the storage function will reduce in the end just charge it into electricity, problems in the internal rechargeable battery, it is no longer able to store energy so I won't charge electricity. Tell you I have a you so the desk lamp of the same, not thoroughly with the eight months, I finally changed only USES a small battery now. I can because I love electronics repair maintenance.

Q:The voltage of the LED lamp is about how much: Like to see the instruction manual. General desk lamp is 6 v or 12 v (lead-acid battery). 3.6 V or 7.2 V (lithium ion battery). 220 plug into mains, after a step-down rectifier transform into direct current, lit LED lights, and recharge the battery (losing electricity state). The working voltage of a single LED lamp is between 3.2 3.6 V, usually series after parallel. If you don't know how much is the voltage, disassemble the lamps and lanterns, count you know leds in series voltage

The company mainly produces sales of products: LED eye protection desk lamp, LED fluorescent tube, LED ceiling lamps, LED Jane lights, LED light strip, LED bulb lamp products. Is the production of LED products are exported to Europe, the Middle East, Japan and South Korea market. Using the latest international environmental protection and energy saving technology, environmental health effects have to meet European standards.

1. Manufacturer Overview
Location	Shenzhen,China
Year Established	2008
Annual Output Value
Main Markets	China; Mid East；Western Europe
Company Certifications

2. Manufacturer Certificates
a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability
a)Trade Capacity
Nearest Port	Shenzhen
Export Percentage
No.of Employees in Trade Department	20 People
Language Spoken:	Chinese
b)Factory Information
Factory Size:	Above 2,000 square meters
No. of Production Lines	About 3
Contract Manufacturing	OEM Service Offered；Design Service Offered
Product Price Range	Professional