Q:Someone said to 7 w is enough light It does not hurt the eyes But I go to TB, some sellers told me 3 w is enough (equivalent to an incandescent bulb 40 w) don't know that right?? ...... Would like to ask how many watts of LED desk lamp what you buy is good for your eyes? What color temperature in right? Thank you ~

LED desk lamp, sure enough, under 3 w is divided into warm light color temperature below 4500, more than 5500-6000600 is white light don't choose the color is not straight slant blue, warm red light is yellow, like the light bulb.

Q:New LED lamp USES "magnetic -" the voice from time to tome, how to eliminate the noise?

Most of this kind of circumstance is the lamp holder and lamp holder caused by poor contact. Power contact bad part will flame out, produce the gas explosion. Cut off the power supply first, carefully check, rusty part to shave their; Lamp holder shrapnel, to place. If not the lamp holder and lamp holder poor contact problem, other connecting plug is normal, that is the problem the inside of the bulb, is not good. Changing a cheap, expensive repair leds can look for electrical master to look at, or to find original factory after-sales service.

Q:LED lamp in the 4 v lead-acid battery charging problem!

Dedicated charger generally 3 ~ 5 hours, about 200 ma small battery charging current, automatically stops charging. White led lamp voltage 3 v or so, so light is not on the discharge is lower than 3 v

Q:Led the desk lamp, electronic calendar watch how to adjust?

In normal display MODE, press the "MODE" key respectively into the corresponding function: normal to 12 hr / 24 hr, the alarm clock - birthday reminder - timer 2.1 in normal state, press the "MODE" button to enter 12 hr / 24 hr state, then press "bring, ▼" keys 12/24 hour system transformation, press "SET" key and "bring, ▼" keys can be SET up time, date.2.2 in normal state, according to two consecutive under the "MODE" button or directly according to the "AL" button to enter the ALARM state, has "ALARM" signal display, press the "SET" key and "bring, ▼" keys can be SET up ALARM time and choose a cause ring tone, a total of 7 first music and 2 different selection of "click" sound.Press the "SET" button again to close the alarm.When the set alarm clock arrives, it will ring for one minute.If there is an open snooze function, it will ring one time every three minutes, four times.In the normal state, press the "MODE" key to the birthday alert status, press "SET" key and "target" key to SET the date and time of the birthday reminder.Press the "SET" button again to close the birthday reminder.When the birthday reminder is set, play a five-minute birthday song.2.4 under the normal state, according to four consecutive "MODE" button to enter the TIMER state, there are "TIMER" sign, press "SET" key and "bring, ▼" keys can be SET up reverse timing time, timing range: 23:59-00:00 hours.When setting time to "0:00", it will ring for 1 clock and "0:00" flicker continuously.Press any key and stop.Above 3. In normal state, the LCD screen display ALARM when the "ALARM", according to "bring" button to open/close to sleep function, the LCD screen above "SNZ" logo will display and not accordingly.In the normal state, press "enter" button to open/close the music appreciation function.When opened, 7 different music is available on the circuit.In normal state, the temperature conversion of Celsius/Fahrenheit is achieved by the "SET" key.

Q:The voltage of the LED lamp is about how much

Power are using domestic load voltage 220 v, after ac into dc, again after decompression for the LED power supply, how many v voltage, LED need according to the design to have different version for different voltage, such as there are 5 v, 6 v, 9 v, 12 v, 16 v, 24 v, 32 v, etc. A LED light-emitting diode connection: string increase the voltage, electric current is constant. And even the constant voltage, electric current increase. For reference only.

Q:Led the desk lamp that shield an eye how to choose?

Eye protection is our life lessons, eye to start at a young age. Students in rapid growth stage, the body should protect the pair of the window to the soul. Eye can reflect on a lot of details, the lamp that shield an eye can greatly alleviate eye fatigue, protect your eyes from harm. The lamp that shield an eye is not adjust light brightness, who can adjust the brightness of the lamp that shield an eye eye function. Is the price is more expensive than ordinary ordinary incandescent bulbs. The lamp that shield an eye lamp luminous color temperature value determines the degree of light is downy, high and low are not good, is suitable for 4000 k to 5200 k. The lamp that shield an eye of 4000 k to 4500 k, the light is slightly red, more soft, suitable for primary school students; And 4500 k to 5200 k color temperature value is suitable for middle school students and its older customers to use. There is good, had better choose light yellow lights for under the yellow light will feel soft and comfortable to read and write, by reading in white, for a long time will feel sore eyes. The choice of the desk lamp that shield an eye still depends on the brand, good brand of the lamp that shield an eye quality guaranteed, the quality is qualified through inspection

Q:The study USES the LED lamp?

Personal feel is good, good reading time or a bright spot in the study, it is better on the eyes!

Q:How to repair the led rechargeable small desk lamp

If the part is not bright, check if not bright LED's virtual welding or burning.

Q:There are several major disadvantages of LED lamps

Small LED lamp bead, loss of a few years later will slowly to change, easy to cause the whole lamp scrap

Q:LED lamp, lens type and light type which good,

If it is put on the edge of the desk lamp of the head of a bed or lens would be better, but before problem lens design is reasonable, no spot. Planar light light is scattered, suit to put on the desk, the hope can help you. You have to actually desk lamp is the key to no stroboscopic, this to the injured eye