NVD's products are now available for purchase with Gen III White Phosphor image intensifiers manufactured by Exelis. Traditional image intensifier tubes use a P-43 phosphor screen output, resulting in the yellow-green image that has become the signature view through most Gen III night vision systems. White Phosphor tubes use a P-45 phosphor screen, which yields an alternate coloration closer to black and white imagery. This change in color has been reported to enhance overall object recognition while providing contrast sensitivity equivalent to or better than traditional green phosphor image tubes. These WP tubes are available for system upgrades and can be Hand-Select for higher performance an extra fee. As always, NVD systems come with a TEN year warranty.