vion task chair
vion task chair Related Searches
vion task chair Supplier & Manufacturer from China
Okorder.com is a professional vion task chair supplier & manufacturer, offers integrated one-stop services including real-time quoting and online cargo tracking. We are funded by CNBM Group, a Fortune 500 enterprise and the largest vion task chair firm in China.
How about the LED the lamp that shield an eye, ok
- Of course there are good there, than fluorescent lamp is the biggest advantage of no stroboscopic. Buy should pay attention to look at the LED parameters: the first is the color rendering index Ra is more than 85, reduction of color ability. A second look at the desktop illumination, 500-800 Lux, don't be too bright, easy to produce visual fatigue. Third simulation under the child's reading position look have uncomfortable glare. About 4 color WenXuan 4000 k. I hope it can help you!s
Led lamp, good point light source or surface light source
- Not good surface light source,, the advantage is that the good anyways
Plug-in socket 12 led small desk lamp What is its battery model, the input and output voltage of each?
- USB charging desk lamp is a desktop or laptop computer USB mini rechargeable lamps. Is through the computer connected to the computer USB interface, downy light, most of the charging desk lamp can adjust the brightness of the light, two control as you need to change, is very convenient. The USB port on the computer (that is, everyone is used to insert USB interface) for external voltage of 5 v power supply for the equipment, the current 500 ma, USB charging small desk lamp of desk lamp is with USB interface to provide power supply, lamp take up the space is not too much, and very save electricity, suitable for office workers or students.s
The LED rechargeable lamps can charge while lighting? The reason?
- Can't, or it will burn out all on your desk lamp led diode, the reason is that the charger is not isolation transformer, but electronic charger, electronic charger with high pressure when charging, if turn on the light use, breakdown, all leds, so can't charge while lightings
LED lamp stroboscopic serious, can you tell me the reason?
- Is zero, because ac 100 times per second of voltage is zero, if simply step-down rectifier circuit, or filter capacitance is too small, through the LED current is 100 times per second interrupt, LED is a semiconductor light emitting, reach nanosecond, response time and tungsten by electric heating filament reach the state of incandescent light emitting, filament cooling speed is about tens of milliseconds, you can turn on the LED desk lamp to see the inside of the circuit.s
Led rechargeable lamp, charging is completed, charging indicator light color?
- There are two kinds of lamp battery: Lithium battery charge with mobile phone charge, same instructions filled with red light turns green said, such as no charging indicator can only refer to the instructions. 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 cans
High-power LED the lamp that shield an eye more appropriate
- and to achieve the same intensity of illumination, white the most power-hungry, definite lamp is about three to five times the size of energy-saving lamps, LED the five to eight times. LED as its light Angle is not close to 360 degrees, under the same power, in the direction of the LED light, LED has the highest intensity of illumination, for example, if you use a 9-11 w lamp, LED lights do you completely can also use a 11-15 w energy-saving lamp as a desk lamp. Energy-saving lamps - LED 4 w power consumption calculation, turn on the light for five hours a day, continuous use of more than 50 days 1 KWH, a year only 7 degrees, 0.5 yuan per degree, only 3.5 yuan a year, but harm to your eyesight smaller, compared with 60-80 w white lamp code,s
LED rechargeable lamp charging is better
- Buy into the type of good, safe, nice hear thunder.Had better not use while chargings
Why is strobe lights kits important
- Strobe lights kits have many advantages such as 1.600W flash energy2.Perfect guiding number3.Short recycling time4.Long lighting coverage5.High color temperature.6.Quick flash dura...
How does the traffic light system work
- Everyday, on your way to work, no matter you drive your own car or take a public transportation, you will meet a lot traffic lights which keep the whole city’s traffic under cont...
Do you want to have best outdoor lighting
- Beautiful lighting should never be limited to the interior of your living space. This spring, dress up your home's patios, porch areas, deck, and walkways with lovely pieces th...
How does a traffic light work
- The traffic lights, also known as, traffic lights. Traffic light is made up of red light, green light, yellow light. Red light says no thoroughfare, to green light, yellow light sa...
Cheap led downlights become more and more polular
- They are one of very few specialist "fibre optic" lighting suppliers left in the country, our knowledge and experience in this fields is second to none hence the increase...