What can happen to the lens, i bough a se from LMC, then i found some on ebat autopal brand from an Indu guy and work good they are what they are so what do you want from them really, i have off road them for a couple of years, have HID lights in the for a while and they havent cracked or anything, i can get a set of thoose down here for a round $30 but the crystal aint clear it has lines on it (i dont like that), bough them for my mustang but the idiots gave me 2 RH glasses so when you turn the lights on you can see a slight difference in the lighting