The filament design is one of the most important visual elements in a decorative bulb. It determines how the bulb looks when turned on, how the light pattern appears inside the glass and what kind of atmosphere the product creates in a space.

For restaurants, cafes, hotels, bars, retail stores and branded interiors, a custom filament bulb is more than a light source. It can become a visual signature, a decorative detail and a part of the customer experience.

Our Filament Design Guide helps you understand different filament styles, including spiral filaments, X shape filaments, V shape filaments, flame shapes, moon shapes, letter shapes, colored filaments and fully customized patterns.

Spiral Filament

Spiral filament bulbs create a soft, flowing and warm visual effect. The curved light line adds movement and elegance inside the glass bulb, making it suitable for cafes, restaurants, bedrooms, lounges and warm hospitality interiors.

Best for

Cafes, restaurants, guest rooms, lounges, home interiors, warm decorative lighting

Visual feeling

Soft, warm, flowing, classic, comfortable

X Shape Filament

X shape filament bulbs create a modern and graphic visual effect. The repeated X pattern works especially well inside long tube bulbs and vertical pendant lighting installations. It is suitable for bars, restaurants, retail stores, cafes and commercial interiors that need a stronger design statement.

Best for

Bars, cafes, restaurants, retail displays, pendant lighting, modern commercial spaces

Visual feeling

Modern, graphic, bold, rhythmic, architectural

V Shape Filament

V shape filament bulbs create a clean and structured lighting pattern. The repeated V design feels simple but distinctive, making it suitable for modern restaurants, boutique hotels, retail spaces and decorative pendant lights.

Best for

Boutique hotels, modern restaurants, retail stores, wall features, vertical pendant lighting

Visual feeling

Clean, structured, modern, refined, directional

Flame Shape Filament

Flame filament bulbs create a warm, lively and emotional atmosphere. Some flame designs can be made with a flickering light effect, making the bulb feel more dynamic and decorative.

Best for

Restaurants, bars, lounges, themed interiors, warm commercial spaces, decorative feature lighting

Visual feeling

Warm, energetic, dynamic, intimate, expressive

Moon Shape Filament

Moon filament bulbs create a quiet, romantic and artistic atmosphere. The soft curved shape works well in hospitality interiors, boutique hotels, bedrooms, gift lighting and decorative table lamps.

Best for

Boutique hotels, bedrooms, lounges, gift lighting, romantic interiors, artistic spaces

Visual feeling

Romantic, calm, poetic, soft, memorable

Letter Shape Filament

Letter filament bulbs use words, initials or short messages as the glowing inner design. They are suitable for branded interiors, gift products, seasonal lighting, themed spaces and emotional decorative lighting.

Best for

Gift lighting, branded spaces, retail displays, hotel rooms, themed interiors, special collections

Visual feeling

Personal, emotional, memorable, branded, expressive

Colored Filament

Colored filament bulbs use pink, blue, green, red, amber or other custom colors to create stronger atmosphere and visual identity. They are especially useful for bars, retail stores, boutique spaces, entertainment venues and brand display areas.

Best for

Bars, retail stores, concept shops, boutique interiors, nightlife spaces, branded displays

Visual feeling

Creative, eye-catching, energetic, atmospheric, brand-focused

Custom Pattern Filament

Custom pattern filament bulbs can be developed according to a project idea, brand concept or interior theme. The filament can be designed as a symbol, simple graphic, custom line pattern, seasonal shape or special decorative element.

Best for

Lighting brands, boutique hotels, themed restaurants, retail brands, custom collections, commercial projects

Visual feeling

Unique, artistic, custom-made, distinctive, project-focused

How to Choose the Right Filament Design

The right filament design depends on the space, glass shape, glass color, fixture style and brand atmosphere.

Choose spiral filament if you want a warm, soft and classic de