Q:How to maintenance of led desk lamp filled in no electricity

Possible battery charging circuit is broken, seeing you is what buck circuit, if it is a transformer or resistance and capacitance step-down circuit is relatively simple, maintenance is a electronic components, slightly understand electronic knowledge can repair myself. If it is switch power supply is trouble to repair, to professional maintenance technology to repair.

Q:Why is the largest lamp radiation?

Traditional desk lamp because have ballast, and people generally, it's close by all said have radiation is larger. LED it has a blue light, the key is not to direct eye to light, had better choose the desk lamp of a chimney. Such as this.

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

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

Q:How many watts of LED3 is equal to the ordinary energy-saving lamps

Led3 tile, led3 tile how bright, 11 w energy-saving lamp is equivalent to, energy-saving lamp wattage, how many watts of energy saving lamps, energy-saving lamps how many watts, 3 w energy-saving lamps, energy-saving lamps, how many tile home how many tile energy-saving lamps, 13 w energy-saving lamps,

Q:A led desk lamp always zi zi ring is how to return a responsibility?

Inside thrum have poor contact, look at the best, don't have accidents

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:When did you buy? If it is just bought, suggest you use first photoelectric charge again

LED, LED because of the different luminous principle, eliminate the stroboscopic and has high photosynthetic efficiency and pursue higher photosynthetic efficiency potential Advantage is small volume, no stroboscopic, including UV, high light efficiency, using high quality chip (OSRAM, day, and the name of the CREE) products can reach more than 80 or 80 color and has a long life The disadvantage is that the current national standard uncertainty, the products on the market anomalies chaos, most manufacturers use inferior chip led to less than 50 color... And LED chip due to poor use drive electric power are different, such as chip array and flashing brightness difference problem In a word, If conservative and don't care under the condition of light, it is best to use halogen light source to read; Care about energy saving problem use energy-efficient light bulbs, but must pay attention to choose big, because of the small manufacturer use halogen powder phosphor color rendering index less than 70, the same is not suitable for reading; If the pursuit of high-end, strict energy-saving, wish longevity noodles and the modelling of traditional light source, can choose LED products, but the best choice in the lighting industry's top brands and formal channel, so as to the quality of the products

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:Do leds have ultraviolet radiation

No radiation, now do the LED lamps and lanterns of domestic brands, are the main foreign market, in people life health check outside of yan song, somebody else can, let's also no problem to search

Q:Led lamp, good point light source or surface light source

Desk lamp to see is to choose lamp holder types use the bedroom or in the study, the study USES led is very good choice, monochromatic light color cold light source, can help clear your mind to learn reading; But the bedroom use or suggest using incandescent lamp, mild color, adjust the mood to sleep. Get to the point, it is recommended to use surface light source, light area is larger, help reading and prevention of myopia.