The light house lite 1m tent has extraction through the roof with a 250mm 10 sock and 2 x inline 250mm 10 socks for use with air cooled lighting there are also 3 x low level passive air vents with fine anti mite mesh and it also includes light proof covers for when they are not in use the light house lite 1m tent is ideal for use as a drying storage environment when used with the light house dry net it is for a single lamp set up 400w hid and an extraction fan of around 350m3 t