The main difference between the DC ballast and HID ballast exchange
DC and AC HID Ballast HID Ballast with AC main difference between the DC output HID, the main difference between what a . Less MOS transistor 4 , and a control circuit portion is simplified , the cost can be reduced. 2 . DC ballast , the output is DC , without conversion, while four MOS, demanding for the same parameters , and if not , it is easy to burn , so relatively speaking, the failure rate is reduced. 3 . DC ballast, DC bulb to meet the need , if AC lamp which is easy to burn ; 4. DC ballast, not easily broken , but relatively speaking bulb life will be shorter ; 5. DC ballast, currently there is a problem to be solved is: In the lighting process, the flicker is no short-term solution , and the industry needs to be resolved ;
Some early HID xenon lamp with DC , but their HID xenon lamp life is short. This is because in the case of direct current , a positive electrode of a high speed continuous ion bombardment , a long time , causing the ignition electrode erosion . This has resulted in significantly reduced electrode life . With alternating current, high-speed positive ion bombardment even two electrodes , virtually doubling the life of HID xenon lamp. Another advantage is that the temperature of the electrodes when the AC temperature is lower, because the transformation of yin and yang about 400 times per second electrode ( anode DC one electrode is always ) , so that the two electrodes in turn act as heat instead of an anode electrode persistent fever . The good news is that the AC arc is easier to maintain .

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HID bulbs DC
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HID bulbs DC
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The main difference between the DC ballast and HID ballast exchange
About DC ballast xenon lamp and adjustable color temperature related argument ( for reference discussion ) About DC
Ballast Xenon lights and adjustable color temperature related argument ( for reference discussion )
The main difference between the DC ballast and HID ballast exchange
The main difference between the DC ballast and HID ballast exchange
DC and AC output HID HID, what are the main differences
1 . Less MOS transistor 4 , and a control circuit portion is simplified , the cost can be reduced.
The author views : DC ballast design, the cost is decreased a lot, it can be said only ballast costs fell by nearly 1 / 2 ; all a lot of businesses to begin using DC ballast supporting . However, there is a need to pay attention now able to do DC lamp manufacturers, very few rare , almost all is not mature, so the quality can not be guaranteed . In Taiwan and Japan have a DC lamp manufacturer, how the quality has yet to be verified.
2 . DC ballast , the output is DC , without conversion, while four MOS, demanding for the same parameters , and if not , it is easy to burn , so relatively speaking, the failure rate is reduced.
The author views : DC ballast design, the cost is decreased a lot, but it is difficult to get the consistency of the DC ballast control , if the control is not good, then the negative effects it brings is great, now there are many businesses using DC ballast with AC lamp, because then it costs can be reduced, but it is prone to burning bulb phenomenon, if easy to burn the bulb , then it will lose the real meaning xenon lamp life short. One advantage of HID xenon lamp itself is a long life, it is designed according to the design life of ten years , but the quality of ballast largely determines the quality of the whole HID xenon lamp , so the match is not good , then you lose the HID Xenon significance of the lamp itself .
3 . DC ballast, DC bulb to meet the need , if AC lamp which is easy to burn ;
4 . DC ballast, not easily broken , but relatively speaking bulb life will be shorter ;
5. DC ballast, currently there is a problem to be solved is: In the lighting process, the flicker is no short-term solution , and the industry needs to be resolved ;
The author views : DC ballast design, performance and intuitive lighting on in the process there will be more obvious flicker , more importantly, it is a large lamp impact , greatly reducing the life of HID xenon lamp . As to when this friend can solve the above mentioned problems? Not currently clear. Only time and market research.
6.2009 , DC HID further reduced because of the price , will become a mainstream product .
The author views : Will become the mainstream , which is needed to research, the need for the test of time , not someone say that it will become the mainstream will become mainstream. Just as there had been on the market "Adjustable color temperature xenon lamp will become mainstream ," By now it is not necessarily mainstream . Only mature products, stable quality products and will become the mainstream .
Would also like to mention the so-called adjustable color temperature dimmable xenon lamp thing. In fact it is purely Bluff say, is actually a concept. Color temperature is already doomed in the HID xenon lamp tube production because the color temperature of the lamp depends on the level at the time of production will need to make adjustments in the parameters of various elements of how much gas , it is the number of the ratio , which are there is a need for strict numerical control , simply, it is the color temperature of the original design is how much is , in fact, it can not be late to adjust . So why in the market have spread adjustable color temperature this all about? Is actually adjustable ballast voltage, power . Now available dimmable ballast is designed to be adjusted from 35 to 45W or higher power , when the power of the ballast to increase the input power of the lamp will increase . For example : Many adjustable color temperature HID Xenon lamp color temperature is 8000K select or 6000K, because when adjusting the ballast power increase , it will be because of the color temperature being significantly larger than normal highlighting 35W power driven , so one to the surface will produce a change in color temperature . Originally 8000K color temperature lamp, after adjusting ballast power , it will show up below 8000K color temperature , the greater its power so its brightness is higher, the lower the color temperature value. But this is not the adjustable color temperature of it ? This assertion is not true. It's just forced to increase the effective power of ballast to achieve the effect of reducing the color temperature , color temperature has not been adjusted, but reduces the color temperature in disguise . What kind of consequences this approach will produce it? In fact, not difficult to understand that the lamp itself is to bring the best is good enough for constant power , its life will be longer. This is why our exchange ballast is usually the reason constant power design. Like if 6000K color temperature itself is equipped with adjustable power ballast bulb to use , then when you need to adjust the brightness of the time, you can increase the ballast operating power , the input power to increase the brightness of the lamp will be higher then it also will be with the color temperature value of the brightness increases. In the final analysis is the color temperature has not been adjusted, but power has been regulating ballast only. The origin of dimmable ballast dimmable essentially once graced the design cited out, when it comes to doing booster can be considered one of our veterans , to this point I still have a certain understanding.
It is recommended that consumers and businesses to refrain from a friend only to the characteristics of a product and buy so-called dimmable adjustable color temperature HID xenon lamp, it would only make themselves " boomerang " dimmable HID xenon lamp is not the ideal choice , if only for a * , then the author speechless , huh.
About DC ballast and ballast exchange is still friends saying , refer to the following : DC lamp will become mainstream ?
DC lamp can do now have a few ? To my knowledge there is no one like me from the end of 2007 began to experiment until now DC lamp made ​​out of conformance requirements are not reached , and now need to do DC lamp and ballast manufacturers do produce a good fit to direct light without which one can do alone , the loss of life and light effects in exchange for a cheaper price in other words, a loss of quality in exchange for a price ; while driving the car , if the occurrence of flicker and vibration resonance , will drive people produce dizziness, do not know if you do not consider too , if only cheaper prices will own lives at risk , then you can use the DC lamp , but now it seems there are bigger DC lamp market trends , to remind you , ah, do not covet a moment of cheap !
floorfilla: Upstairs said is right, one of my friends warned me that do not sell in the domestic DC HID ballast , but I have only sell AC HID Ballast , business is doing conscience. !
Ballasts are now doing to make blind
Ballast to do on their own imagination to do the DC lamp ballast , we communicate with them when they know nothing about DC lamp works even dare ballast, the ballast will certainly do it , but off it. Also require light to do with them , is simply baffling.
Feel more and more Chinese xenon lamp market turmoil, hope that those companies do not pay attention to quality and quickly drained some of reforming the market , we will have to stay alive ! ! ! ! ! ! ! ! ! !