As a new generation of light source, non-polar lamp has the characteristics of long life, high light efficiency, energy saving and environmental protection. However, at present, many people's understanding of the non-polar lamp only stays on a concept, especially the understanding of the high and low frequency non-polar lamp is vague, there are many misunderstandings, such as the mistaken belief that the high frequency non-polar lamp will be more expensive than the low frequency non-polar lamp, and better than the low frequency light efficiency, etc. This paper discusses the advantages and disadvantages of high and low frequency stepless lamps and the existing misunderstandings.
1. The price of low-frequency non-polar lamps will be higher than that of high-frequency ones. The main reason is that the low-frequency non-polar lamp tube has a special structure, which is mainly circular and rectangular. (it cannot be mass produced) complex and expensive equipment is needed to realize mass production, and its production technology and technical content are relatively high. The structure of the high-frequency non-polar lamp is relatively simple, mainly bubble shaped, olive shaped, can use simple equipment production, production technology and technical content is low, so the price is relatively low. 2. Optical effect the optical effect of high-frequency non-polar lamps generally only reaches 50-60lm/w, while the optical effect of low-frequency lamps can reach 80-90lm/w. The effect of low frequency light is 25% higher than that of high frequency light. The brightness is naturally 25% higher. The main reasons are the low conversion efficiency of the ballast of the high-frequency non-polar lamp, the high frequency loss of the coupler, (in order to shield the magnetic radiation, most of the inner wall of the bubble is coated with a metal film layer) and the high temperature of the high-frequency non-polar lamp will cause phosphor damage, so that the light effect will be reduced by 30% within 1000 hours. However, due to the low operating temperature of the low-frequency non-polar lamp, the light loss in 1000 hours is only 7%. The ballast and coupler of the low-frequency non-polar lamp work at the operating frequency about 1/10 of that of the high-frequency non-polar lamp, and the high-frequency loss is greatly reduced, which further improves the light efficiency. 3. The operating frequency of the high-frequency non-polar lamp is 2.65 MHZ, equivalent to the operating frequency of a short-wave radio station. The low frequencies are 200 to 250 kilohertz, a fairly small operating frequency.
4. The heat dissipation problem of the high frequency electrodeless lamp built-in coupler, its core temperature at 350 degrees, so the heat dissipation problem difficult to solve, the electronic components in the ballast is hard to work in high temperature environment, so the high frequency do wattage is not big, high frequency power is 10-165 watts, and low frequency is external coupler, the circular and temperature at 160 degrees, and the low frequency of 10-400 watts power can be done.
5. Electromagnetic compatibility interference test for EMC the high-frequency non-polar lamp has radiation, which interferes with the state grid and electrical equipment, so it is difficult to pass the EMC test. Therefore, it has been banned in European and American countries. The low frequency non-polar lamp can pass the EMC test. The electromagnetic radiation problem is basically solved, which is very popular in European and American countries.
6. In terms of shape, the high frequencies are generally bubble shaped, while the low frequencies are generally ring and rectangular. So high frequency non-polar lamp is easy to match lamps and lanterns, and low frequency is more difficult to match lamps and lanterns. This is also the biggest advantage of the high frequency non-polar lamp.