sorry for this double post but forgot to add some info and too late for editing

if i messure the temp. by placing the thermometer on top of the pots (in the light) it reads 32C if i place it in the shadow of the cardboard (still right in between then pots) it reads 27-28

please explain, why should i take the temp from the shadow? the plants dont have any shadow? wouldnt that mean that the PLANTS are cooking in 32C and the thermometer is chilling in the shadow at 27?? :wtf: