Q:LED dual-mode folding desk lamp on external what meaning be

LED desk lamp, driving power and desk lamp is divided in two, the vast majority of dc lamp, socket is a circle with a small stick of that kind of, need with the corresponding hollow plug connected to a dc power supply. When you need to use, will drive the dc output of the power plug into the desk lamp of light, and then open the power switch, the lamp light, bright, that's the beauty of dc lamp, this is the external power supply.

Q:Led lamp is broken. Who knows what reason be? How to repair?

You want to turn the light down, take a photo, to tell you how to fix, too many kinds of LED lamps and lanterns, each have each way, this phenomenon is usually light bead is broken

Q:LED desk lamp, very bright, when buy later with more and more dark

Droop, poor quality, I bought for my daughter, with more than a year didn't meet this problem, is pili brand

Q:LED rechargeable lamp charging is better

Close the lamp light source recharge, long time need not when please charge once 3 months, and is to reduce the battery life would be!

Q:Whether the LED desk lamp, luminous points: two guide plate and the patch?

LED lamps light source generally have patch light, into the light, and power source, there is also a surface light source. But more popular on the market at present is made of tiles and is by the desk lamp of light after diffusion of light guide plate, so the light will be soft not dazzling! But no matter what kind of light source, LED desk lamp is not main lamp power supply shall be without stroboscopic is the most important thing, is good for your eyes desk lamp. Because whatever the source, as long as meet the function of the lamp lighting the reading, the second function is to protect his eyes.

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

Q:Philips lamp with good light bulb or led

From the point of view of economical and comfortable with the LED is good! LED light source is soft closer to natural light. Is energy saving

Q:The LED lamp can use while charging?

Can, but it is not recommended to do so. Mobile phone can also charge while playing, but also have exploded. While filling in terms of electrical damage!

Q:I want to ask to buy what kind of bulb to eyes good, leds? How many watts

220 v to 12 v may not use resistor step-down, so efficiency is very low and the resistance of consumed power is very big (18 times reached the bulb power), the original circuit could be a 220 v variable or a 12 v transformer AC - DC devices.

Q:How to repair the led rechargeable small desk lamp

The cause of the damage may have three, the first wire solder joints from or switch contact bad, you carefully check each except; The second is lead-acid battery damage can't charge; The third line fault is charging, the charger for capacitance, rectifier diode, resistor, the most easily broken is the capacitance, then inspect diode. If you didn't have electrical knowledge, please do not repair, in order to avoid dangerous.