Very hydrophobia ...

Lamps themselves well! Light also good! But do not go cycling in the rain! If rain is in sight once at least plug the Near radiators in the jacket, because only a smidgen of water and the lamp is in the bucket so like me!
I guess it is to be expected that when you get on a bicycle in a rainstorm that the lamp that can withstand and is not immediately broken! It is freely penetrated a lot of water in the air and has the electronics destroyed on the board behind the LED's! And after two days of use, that's why only one star! Sorry!