Description
Technical Parameters
Product Description
The Columnar Grain T-Type LED Lamp is a 30W residential and light commercial staple that features a specialized grain-textured housing for enhanced grip and improved surface cooling. At 3,000 Lm, this lamp provides the perfect balance of brightness for high-traffic areas without being overpowering. Since 1996, our factory has been refining the T-shape design to meet the evolving needs of the global home lighting market. This unit is built on our fully automated high-speed SMT lines, ensuring that each of the internal LEDs is placed with micron-level precision to provide uniform light distribution. The columnar grain texture adds a layer of modern sophistication, making it a favorite for designer-focused retail channels.
For wholesale distributors, the Columnar Grain T-Type LED Lamp offers a high-volume, reliable product with an exceptional CBM/CTN ratio. With 50 pieces per carton and an optimized 0.099 CBM, it is one of our most logistically efficient models for international trade. As a direct-source manufacturer, we ensure that every batch meets our high standards for luminous efficiency and product consistency. The 50,000-hour lifespan and 2-year warranty provide a competitive edge in retail markets where consumers are looking for long-term value. When you partner with us, you are leveraging nearly three decades of manufacturing expertise to provide your customers with a high-standard residential lighting solution.
Specifications
| Wattage | 30W (±10%) |
| Luminous Flux | 3,000 Lm |
| CRI | Ra ≥ 80 |
| Base Type | E27/B22 |
| Voltage Range | AC 100-260V |
| Lifespan | 50,000 Hours |
| Warranty | 2 Years |


Application Areas
The Columnar Grain T-Type LED Lamp is ideal for large residential living rooms, hallways, and covered balconies. It is also well-suited for boutique retail stores and office lobby environments that require bright, consistent lighting with a modern architectural feel.
Customization & Factory Strength
We offer extensive customization for the Columnar Grain T-Type LED Lamp, including brand logo printing and custom color box designs. Our facility operates with a human-machine collaborative manufacturing approach, ensuring high production precision across millions of units. Our 20,000 sqm factory and stable supply chain make us an ideal partner for global OEM/ODM projects and high-volume wholesale orders.

Quality Control & Shipping
Each unit is subjected to a 100% full inspection, covering functionality and electrical safety before it is cleared for shipping. We support common trade terms like FOB and EXW. Our mechanized production schedule ensures that orders are delivered on time, with a standard lead time of 30-45 days for customized batches.

FAQ
Q: What is the benefit of the columnar grain?
A: It improves surface area for cooling and provides a modern aesthetic compared to flat-surface bulbs.
Q: Do you provide samples for testing?
A: Yes, we provide standard samples for quality verification; shipping costs are usually borne by the client.
Q: Is it available in 110V?
A: Yes, the AC 100-260V wide-voltage driver is designed for worldwide use.
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