15" LED TV, Backlight is LCD changed to LED backlight, The Panel is refurbished panel, but can still have at least 5 years warranty after the sale.  This size TV we said panel is the square panel, wide to high proportion we say 4:3, inside the whole TV, the only panel is used, other materials , like TV mainboard, power board, voltage board, remote, all new materials, no any used materials. and also, the mainboard have reverse function.means when people connected battery with wrong voltage connect, no damage to the mainboard, of cause no damage to the TV.