... 50mW 1.Lowest price and quality 2.ship by EMS,DHL,UPS 3.1year warranty 4.Accept Paypal ... 20mW in stock always, we will send out within 2 days, no delay.this"blue violet laser ... this listing,you can check it by alibabaThis item will ship by UPS ,EMS ,DHL ,free shippingDelivery address on ... or not)We accept AliEppress ,Paypal, transfer by bankWarrantyThis item comes with 45days replancement warranty. We ...