black laser 1. skin softing and whitening; sweat pores, wrinkles and epidermis scar ... dirt of the cuticular layer meanwhile get rid of the black pigment of the epidermis layer, in return, it tighten the pore ... Laseroutput wave length: 1064nmThe pulse energy: ~700mJPulse width: ~10nsRecurrence rate: 1, 2, 3, 4, 5HzCooling condition: wind system+closed circulating+cooling ...