PAR : Photosynthetically Active Radiation 照释是:光合作用放射(*平时很少接触) PC : Power Compact Lamp 强力灯照(*平时很少接触) PPM : Parts Per Million, equivalent to mg/l (milligrams per litre) 数量单位, 每一百万的含量 ..
If the krypton component of mixturegases is filled, the powerandtotalluminous flux ofcompact fluorescent lamps will be reduced to be down 5- 10%, and the lampvoltage is alsoreduced too.