For Southeast Asian lighting exporters looking to sell on Alibaba.com, understanding product specifications is the foundation of successful B2B transactions. The G13 base with 1200mm length combination represents one of the most common configurations in the commercial lighting sector, but what exactly does this mean for your product listings and buyer communications?
The G13 base refers to a bi-pin connector with 13mm spacing between the two pins. This is the standardized connection type for T8 fluorescent and LED tubes. The 'G' stands for 'glass' (originally used for glass bulbs), and '13' indicates the pin spacing in millimeters. This standardization ensures compatibility across manufacturers and fixture types globally.
The 1200mm length (equivalent to 4 feet or 48 inches) is the most widely used size in commercial and industrial settings. This dimension directly corresponds to traditional T8 fluorescent tube replacements, making it the default choice for retrofitting existing fluorescent fixtures to LED. For sellers on Alibaba.com targeting Southeast Asian markets, this specification aligns with regional commercial building standards and import requirements.
T8 LED Tube Standard Dimensions and Applications
| Length (mm) | Equivalent (ft) | Typical Wattage | Common Applications | Market Share |
|---|---|---|---|---|
| 437mm | 1.5 ft | 6-8W | Residential under-cabinet, display cases | 8% |
| 590mm | 2 ft | 9-12W | Small offices, retail displays | 15% |
| 895mm | 3 ft | 14-18W | Medium commercial spaces | 12% |
| 1200mm | 4 ft | 18-24W | Offices, warehouses, factories | 60% |
| 1500mm | 5 ft | 28-36W | Large industrial facilities | 5% |

