Mine can also see the 發熱線 and it comes along with a cover. If you use the cover, won't be too hot for the lashes. Even sometimes I need it quicker to curl my lash, I will take off the cover and use it directly onto my lash. Didn't burn it. I think buy expensive one is safer coz using it on the eyes and need to play safe.
I have been using the second one in pink for 2 years. Very convenient and you could get this from panasonic stores. Check out from the panasonic.hk web for store address.
model company is much more better than panasonic !! but it's quite expensive ~ around 2xx ~ u can find it at faces ! their BA will demonstrate for u first ! u can compare them first !