1. Structure: Most chandeliers have a central stem or frame, from which multiple arms or branches extend. These arms hold light sources, which can be bulbs or candles. The arms may be curved, angular, or spiral, depending on the design.

2. Materials: Traditional chandeliers are often made from crystal, glass, metal, or wood. Crystal chandeliers are prized for their ability to reflect and refract light, creating a dazzling effect. Some modern designs use materials like chrome, brass, steel, or acrylic for a sleek, contemporary look.

3. Light Sources: Early chandeliers were designed to hold candles, but most modern chandeliers use electric bulbs. Some feature LED or incandescent bulbs, and others may use smart bulbs for adjustable lighting effects.

4. Design: The design can range from classic, ornate styles with intricate details and numerous light sources to minimalist and geometric shapes. Popular themes include vintage, industrial, rustic, and art deco.

5. Size: Chandeliers can range from small, single-tier designs suitable for smaller rooms to large, multi-tiered pieces meant for grand spaces like ballrooms or foyers.

6. Lighting Effects: Chandeliers not only light up a room but often create a dramatic atmosphere with the interplay of light and shadow. The crystal or glass elements often help create a sparkling effect as light refracts through them.

A chandelier can be an eye-catching focal point in spaces such as dining rooms, entryways, living rooms, or ballrooms, where its beauty and illumination can be fully appreciated.