Diya made of brass are permanent fixtures in homes and temples. Diyas are native to India, and are often used in Hindu, Sikh, Jain and Zoroastrian religious festivals.

Fire itself is a source of light and a source of life in many ways. It is symbolism; it's a way of invoking your own inner nature.

Design: Made of thick brass with long lasting finish.

Brass is a fire-oriented metal that exhibits projected energy. It is a popular in healing, wisdom and often used for prosperity and protection spells.

Location for lighting lamps and their importance in places of worship: 

North - For success in all ventures undertaken. Most preferable direction to place and lighting a lamp. 
East - For good health and peace of mind. 
West - For freedom from debts and victory over enemies 
South - Never light a lamp in the south direction. It is considered inauspicious