actually 405nm LED not belongs to UV light source
for 床頭燈 using 405nm LED and 放床頭, you will have risk get "sun burnt" after expose for ~8 hour (depends on power rating of 405nm 床頭燈)
餐廳嗰啲吸蚊機 is not UVC light source, it is UVA light source ~365-400nm (more dangerous than 405nm light source), we call it "UV Black Light Tube" or BLB blacklight blue fluorescent tube |