The SB-110A is a double-layered bulb whose glass shell forms two stacked rounded segments — resembling two layers of artisan bread rising from the lamp base. Inside, a 600mm oversized spiral filament (30mm coil diameter) fills both chambers with warm, visible coils of light. The result is a deceptively simple form that's actually the product of intensive design iteration.
At 110mm × 118mm, the proportions are nearly square — compact yet substantial. It installs into any standard E27/E26 socket and operates on both 100-130V and 220-240V systems globally.
The double-layered bread shape looks effortless — but achieving that natural, harmonious proportionality took nine complete prototype iterations. The key challenges:
Each layer of 'bread' has a specific curvature that determines the overall aesthetic. Even millimeter changes in the arc radius dramatically alter the visual impression — from elegant to awkward, from organic to mechanical. Nine curvature variations were produced and evaluated before the final selection.
The upper layer is wider than the lower layer — counterintuitive at first glance, but deliberately designed to mimic how hanging organic forms grow (larger at the top, tapering down). Meanwhile, the lower layer is slightly taller than the upper, creating a harmonious visual rhythm that 'becomes more beautiful the more you look at it.'
The 600mm spiral filament with its 30mm coil diameter needed to sit perfectly within the double-chambered shell — visible through the glass, proportionally filling both layers without crowding or emptiness. The larger-than-standard coil diameter (most spiral filaments are 15-20mm) was selected specifically to match the generous curves of the bread shape.
Standard spiral filaments in decorative bulbs use 15-20mm coil diameters — tight, compact spirals that read as generic 'vintage filament' from a distance. The SB-110A uses a 30mm coil diameter — nearly double. This creates several advantages:
The compact, square proportions and visible spiral make this ideal for simple cord pendants where the bulb is the entire fixture. Hung individually or in clusters, the double-bread silhouette creates a distinctive skyline that's recognizable even in silhouette.
The visible oversized filament paired with gold-plated or smoke glass delivers authentic industrial-vintage character. For loft apartments, converted warehouse restaurants, and steampunk-themed venues, it provides genuine visual depth rather than the generic 'Edison bulb' commodity look.
The four glass color options give retailers variety within a single SKU family — allowing display walls that show the same elegant shape in clear, amber, gray, and iridescent. This 'collection display' approach drives higher basket size as customers want to see how each color looks in their space.
The 'bread' shape metaphor creates a natural brand connection for food-related venues — particularly bakeries, patisseries, and artisan cafes. It communicates craftsmanship, warmth, and handmade quality through visual association alone.
Available at MOQ 1000 pieces per glass color option. Mixed-color orders accepted (minimum 250 per color). Color temperature adjustable from 1800K to 3000K per batch. Lead time 15–30 days. All glass options ship with CE, RoHS, UL certification.
As a decorative product, buyers can specify their preferred brightness level. At 2W, it produces a very soft ambient glow (ideal for pure decoration). At 4W, it provides 260lm of functional ambient light. Most orders request 3-4W for the best balance of visibility and atmosphere.
Yes — we accept mixed-color orders with a minimum of 250 pieces per color variant. This is popular with retailers who want to display the full color range and with hospitality projects using different colors in different zones.
The gold plating is semi-transparent — the spiral is clearly visible but with a warm amber overlay. When lit, the filament appears to glow more intensely amber than through clear glass. The overall effect is richer and more vintage. When unlit, you can still see the coil structure through the tinted glass.
The iridescent coating creates a rainbow-shifting effect — the glass appears to change color (blue, purple, green, gold) depending on the viewing angle and lighting conditions. When the filament is lit inside, the warm glow combines with the surface rainbow for a magical, otherworldly effect. It's the most dramatic option and works best in modern/contemporary spaces.
The specific double-bread curvature and proportional design is our proprietary development. We hold design rights on the shape. For wholesale buyers, this means you're offering a differentiated product that competitors can't simply replicate from commodity suppliers.