In home can we lit valluku with oil in Iron vallaku for God Sani?
Lighitng a deepa is a good pariharam for Shani Bagawan - but that will be more effective if it is done at a temple premises. (Only when you dont have any temple nearby, you can opt to light the lamp at your place)
If you are lighting the lamp for Shani Graha Preethi - you can use a simple clay lamp (Man agal vilakku) and use Sesame oil (Nallennai) and feed the crows . This will do...