I'm listing Gen3 tube. I can't see any tube brand or mark on the tube shall. Tube is used and still working condition. View has got some blems. You can see on the photos easy. Tube resolution and light condition is good. No, return in this condition tube. Tube is for PVS-7 type unit. You can insert PVS-14, PVS-18, PVS-31 type units. Shipping will be EMS, Express Mail Service. Delivery time around one week. USA buyers responsible local tax and custom fee. I declare package 30USD used light lamp. Please don't forget to send me your email adress for shipping documents after your payment.