A German silver Deepa is a decorative oil lamp made from German silver, an alloy of nickel, copper, and zinc. It features a polished, silvery appearance and is often used in religious ceremonies, especially during festivals like Diwali. The lamp typically has intricate designs, such as floral or spiritual motifs, and holds oil with a cotton wick for lighting. Symbolizing purity, knowledge, and the triumph of light over darkness, it is commonly used in prayer rituals and as a beautiful piece of home decor.