Led lamp generally not transformer, why also said some led desk lamp radiation levels
Some led lights use switch power supply So the excess radiation
LED desk lamp is actually change pressure device, it's just the name is not called transformer. LED lights need drive power, has permanently flow drive and resistance capacity drive, usually 220 v50hz ac power input. Most LED lights use dedicated driver IC (internal electronic transformer), can supply a set or more sets of LED lights, more convenient and reliable. If the transformer is unqualified, radiation levels.
There will be no frequency transformers high-frequency transformer (a lot of switch power supply are to be used), and high frequency transformer has radiation. If there is a low frequency transformer (it does not need to high-frequency transformer) but not excessive radiation
