LED lighting safety requirements

LED energy-saving and environmental protection advantages in lighting industry has become a major trend. As LED technology and products used by traditional lamps with different properties have been, so the current safety standards of general lighting is obviously not applicable. To help the industry address this issue, this issue will be LED lighting technology used, the scope of possible applications, and the current UL safety assessment used to this explanation.
LED lighting technology and features
The so-called LED tube, by definition, refers to lighting products use LED (Light-emitting Diode, light emitting diode) technology to do the main
White LED lamps (16)

To the light source. LED is a solid-state semiconductor components, the use of forward flow of current to the coupling at semiconductor pn junction, and then isolated from the semiconductor with the negatively charged electrons and positively charged holes two kinds of carriers combined, the resulting photon emission, different types of LED panel light can be sent from the infrared to blue between, and among the violet to ultraviolet light of different wavelengths. In recent years, new development is in the blue LED coated with phosphor, the blue LED into white light LED products. The operation usually takes with a drive circuit (LED Driver) or power supply (Power Supply), the drive circuit or power supply's main function is to convert AC voltage to DC power, and simultaneously consistent with the LED voltage and current to drive the matching components.
LED lamps light bulbs, small size, light weight, and epoxy resin, mechanical strength to withstand high shock and vibration, not broken, and the brightness decay cycle is long, so its life of up to 50,000-100,000 hours, far more than the traditional 1,000 hours of incandescent light bulbs and fluorescent lamps 10,000 hours. Because LED light use up to 5 years to 10 years, so not only can significantly reduce lamp replacement costs, but also because of its very small current to drive light-emitting characteristics, in the same lighting effect of the case, power consumption, only firefly the half light the lamp, the LED also has a power and energy saving advantages. But because part of the LED technology is still inadequate, so at first light on the shortcomings of using the included light quality (color rendering, consistency, color temperature) is poor, heat is not easy, and the price is too high, improper cooling of which will be the brightness of the LED lamp life of components and circuit to accelerate decay. With the rapid advances in manufacturing technology in the last decade, these shortcomings, including LED thermal resistance decreases, the quality is also improved in the light. In 2008, in addition to cold white LED luminous efficiency has reached 100 Lm / W, while LED lamp warm white light-emitting efficiency is expected in 2010, also available from the current 70 Lm / W increased to 100 Lm / W. Compared to other general-purpose light source with the current, incandescent light bulbs about 15 Lm / W, fluorescent lamp of about 45 ~ 60 Lm / W, HID lights about 120 ~ 150 Lm / W, LED luminous efficiency is clearly an edge gradually