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How to distinguish whether the led lamps and lanterns glare, is there a standard?
- Glare can be divided into disability glare and arrow glare. Who reduce eye glare called a disability glare, it will be Reduce the visibility of the visual object, but not necessarily produce uncomfortable feelings; Who make the person produces the feeling of displeasure glare is called no Comfortable and glare. Cause glare of led lamps and lanterns has the following four major factors. (1) the light source brightness factor: the higher brightness, glare, the more significant. (2) light source location factor: the closer it gets to the line of sight, glare, the more significant. (3) the light source appearance size and number of factors: the apparent area, the greater the number of light sources, the more the glare, the more significant. (4) the surrounding environmental factors: environment brightness is dark, eyes adapt to lower brightness, glare also becomes more significant. Dazzling light not light, but for the concept of lamps and lanterns. Leds - t8 fluorescent lamp has been rise, are alternative Fluorescent lamp market, due to the lamps and lanterns is ready, can't change, leds - t8 fluorescent lamp needs to ordinary fluorescent effect Fruit near, thus formed the concept of glare. Anti glare products, need to consider the brightness of the led, led between the row Cloth, spacing, the led itself to the distance of the optical cover, the shape of the optical cover, light transmittance, etc., rather than simple Shell or configuration problem.s
The led lamp charging more than 24 hours have what dangerous?????
- Authentic qualified desk lamp, the battery charging protection circuit for battery will not overcharge, adequate electricity stopped. He was afraid the streets or other simple knockoffs, charge for a long time is important for battery life.s
The voltage of the LED lamp is about how much
- Like to see the instruction manual. General desk lamp is 6 v or 12 v (lead-acid battery). 3.6 V or 7.2 V (lithium ion battery). 220 plug into mains, after a step-down rectifier transform into direct current, lit LED lights, and recharge the battery (losing electricity state). The working voltage of a single LED lamp is between 3.2 3.6 V, usually series after parallel. If you don't know how much is the voltage, disassemble the lamps and lanterns, count you know leds in series voltages
LED lamp base fever is normal
- Generally under 10 watts, if the temperature is hot feeling only, not very hot (basic) under 40-50 DuDu is normal. If feel hot, can't stand that is high, the quality problemss
Elementary school students with what kind of table lamp is the best? The LED lamp?
- Although I personally do LED lamps and lanterns, but I don't recommend LED desk lamp for children, and, after all, now the industry focus on blu-ray damage does not, as far as I know only a few manufacturers are doing. For child health, in energy saving at the same time can be measured and feel if I say wrongs
The service life of LED lamps and lanterns is true?
- Theory is a 30000 h - 50000 - h (semiconductor diode). 1. The chip encapsulation (not the same environment, affect the life. And the light bulb how to low the situation is not possible, this is a standard) 2. The power drive power supply (electronic products, general is 2 years,) 3. The lamps and lanterns, the whole life is a long time, generally 2 to 3 years.s
I had had a 20 leds rechargeable lamp, then the battery is broken
- That you the simplest way is to change the battery. Or don't you phone charger, and then put the head of the line across the electrodes of LED lights from you, then you can use electrical appliances, is the voltage peaks
LED the desk lamp that shield an eye eye really?
- Use eye, as long as the light is a kind of damage, the difference is only the size and the third, of course, is impossible, with the eye is not light lamp of choosing a cross-eyed least damage is completely necessary, by contrast, leds regardless of the effect, efficiency, and a huge step forward in principle, is the most close to natural light in all the light source of human invention. It is believed that you have to know. Just led lights there are pros and cons, now led market good rust is not neat, the size of the brand, the price have jet lag for a few times, but as long as it is more adept or understand led people have a better method, is a choice of using high power led lamp bead light is guaranteed!!s
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...
Have you ever used of emergnecy vehicle lighting
- Emergnecy vehicle lighting can be used on Police,Fire engine, Ambulance, Sprinkler, Truck , Security Vehicles, Construction Vehicles, Emergency Vehicles etc.The product can be moun...
What's the advantages of truck strobe lights
- Truck strobe lights are available in 4 and 6 head kits. Kit includes lighted toggle switch, 4 bulbs, 2 - 20 ft cables and 2 25 ft cables.It can be used in engineering vehicles: Exc...
How do the flashlights work from the aspects of diode
- A flashlight, it is a kind of handheld electronic lighting tools. A flashlight typically have a via a battery-powered light bulbs and focused on the mirror, and a hand-held shell f...
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...