We accept return or change when you have any quality problem. Now the chip with new batch. It's the newest batch in 2014, all the function is the same as. Please note, all the part number. Etc work for each order.The item "New Projector DMD Chip 1076-6038B 1076-6039B 1076-6138B 1076-6139B 6348" is in sale since Saturday, May 19, 2018. This item is in the category "Consumer Electronics\TV, Video & Home Audio\TV, Video & Audio Parts\TV Boards, Parts & Components". The seller is "projectorlamp-shop" and is located in Rowland Heights, California. This item can be shipped to United States, Canada, Mexico.