The conception of uv led strip light energy & power density
l Light energy : light energy refer to The variation of the light distribution in object or space. The uv light energy is now express in MJ/CM2 ，the light energy integrator are used for measuring light energy. Some factory indicates irradiation range with light energy. In generally , the curing condition shall meets that (800-1200)MJ/CM2。Other way equipped with shell uv led is not applicable to this case..
l The power density of uv led mean by power is required between two centers of the UV led . represents with W/CM .
LED water proof As the name suggests, the led cable to enjoy wetland settings,the water proof technology should provide a secure against severe work circumstance. Until now, There are many kinds of led water proof in led market. However, in the strict sense,.but a perfect mastery of led water proof connector are really slim. The level of led water proof has reached IP68 . That’s not easy, that’s for sure.why?
it must execute test that put into water which is about ten meters and work for two week. Or put into water which is about One hundred meters and work for half day.
By those standards, Have been really difficult for other manufactory . but we Using this method to make 2 pin waterproof connector.
LED are not like energy-saving lamps. It is starting when there is no high voltage. The led operation current is not that high(in general the scale is 10mA~50mA). but many users find that the led would carry more bigger at starting instant. That’s way?
This phenomenon is due to the capacitance . in general there are have filter capacitance in led circuit . the specific place that it stood hard by rectifier circuit. Work process is : the filter capacitance will process of charging process when led string instant. But this is so short time. The charging current is big if the relatively lower resistance(can reached 1~2A)。but this effect is so small for LED circuit. In conclusion , the current canThe starting current be used as Rated current, The calculating formula of Rated current as: power/voltage , for example 30W/220V/0.136A(amp)