This is due to our philosophy of "quality over quantity". The PPF value of a lamp indicates how many photosynthetically active photons the lamp produces. Dividing this value by the energy used gives an efficiency value. The "photosynthetically active" range of light extends from exactly 400nm to exactly 700nm. This means that all photons in this range are counted, while others are ignored. Some manufacturers focus on high efficiency by using only red LEDs at 660nm, for example. These achieve high efficiency values ​​above 4.5 µmol/J, which looks great on the data sheet. However, pure red light has a negative effect on plant growth. Therefore, they mix in blue and white chips, which lowers the overall efficiency. We go a step further and replace red chips not only with blue, but also with UV chips, even though these do not have PAR efficiency. We do this because we know that UV (and Far-Red) are extremely important for the harvest result. In the end, beautiful flowers are more important than impressive spec sheets.