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FAQ

Of tubes is said to be good, and some say good leds, which is really good

Tell you a data, under 30 cm of height, the desk lamp of illumination can reach 1180 lux this data is the most the desk lamp that shield an eye, fluorescent lamp or LED. Also have no who is the eyes of the lamp to read a book, so the LED light dazzling is not a problem

LED lamp, lens type and light type which good,

How are you First, about the LED lens to make the light more focused, LED by itself cannot be concentrated, so need help on lens. Surface light is simple, LED color performance, add a dustproof lampshade is, sometimes with grind arenaceous chimney, better astigmatism. Besides, desk lamp, desk lamp is the design standard of infinite close to the sun, because artificial forever than nature. So now the LED lamp like stressed without glare No stroboscopic, no radiation it is for this reason, who is more close to the sun, who is better.

The lamp that shield an eye is not flashing, but changed to high frequency. Now LED lights are popular, but the use of communication to the dc LED lamp is not flashing, after all, he's a direct current is also a half wave, not straight?

Definitely not blink doesn't exist, such as whichever refers to a kind of luminous principle, can only say that different levels.

The voltage of the LED lamp is about how much

No, now the best solution is a string of ten. And then in parallel. Voltage is controlled in 32 v, with constant current source driver. Safety, high efficiency

Plug-in socket 12 led small desk lamp What is its battery model, the input and output voltage of each?

4.5 V to 6 V dc power supply, 12 leds is divided into three groups, each group of four, in parallel, each group of string a 60 euro / 1 w resistor. Can't see the battery is to say, inside the battery is filled of sulfuric acid, general 6 v or 12 v battery will be marked above well. General is 220 v

How many watts appropriate general led desk lamp

Advised to choose a well-known brand LED bulbs, LED bulbs now the price is not expensive,

Use LED lamp plant useful? Useful for which plants, which plants useless?

In general, grow leaves, red light demand is big, the be fond of of different plants will differ slightly. Do not have the distinction of good or bad, the key see you kind of plants. Blue light, and is good for some plants flowering. It is common used red light blue light match up.

High-power LED the lamp that shield an eye more appropriate

1 year than energy-saving lamps use 80 KWH, take 40 yuan, really want to save money a lot. And national electricity resource gap is big, also do not encourage you to use white definite lamps. 6 w LED is very bright, but a little bit far distance of illuminance are not idle, half reading needs illuminance in 300-500 lx, far from textbooks some big power, small power from the textbook, with your eyes feel comfortable as well.