| Brand | Keystone Technologies |
|---|---|
| Wattage | 9W |
| Voltage | 120–277V or Ballast Dependent |
| Lumens | 1,150 |
| Lamp Type | LED |
| CCT | 3500K, 4000K, 5000K |
| CRI | 80+ |
| Dimming | Non-Dimmable |
| Base | Medium Bi-Pin G13 |
| Certifications | cULus Listed, ETL Listed, FCC Compliant, RoHS Compliant, DLC Standard Listed |
| Rated Life | 50,000 Hours |
| Dimensions | 1.14" D × 23.78" L |
| Warranty | 5-Year Warranty |
The Keystone 9W Dual Mode 2ft T8 LED is a "ComboDrive" solution designed for maximum flexibility in commercial facility maintenance. It can operate as a plug-and-play lamp (Type A) using an existing compatible instant-start electronic ballast, or as a ballast-bypass lamp (Type B) connected directly to 120–277V line voltage. This versatility allows for an immediate reduction in labor costs while providing a path for Engineering Resilience by allowing the ballast to be bypassed once it reaches the end of its operational life.
This 9W lamp delivers 1,150 lumens, serving as a direct energy-saving replacement for standard 17W F17T8 fluorescent tubes. By providing equivalent light levels while consuming nearly 50% less power, this bulb helps facilities significantly reduce their Lighting Power Density (LPD). This is a critical factor for maintaining compliance with 2026 Code Enforcement mandates for energy efficiency in office and classroom environments.
A Color Rendering Index (CRI) of 80+ ensures that the light output accurately represents colors and provides high visual clarity. In educational settings and corporate offices, this level of color accuracy is essential for maintaining a productive environment, reducing eye strain for occupants, and ensuring that physical instructional materials and digital displays are viewed with maximum definition.
This 9W T8 LED is available in 3500K (Neutral White), 4000K (Cool White), and 5000K (Daylight). The 4000K and 5000K options are the industry standard for boosting alertness and focus in active workspaces, while the 3500K option offers a warmer tone suitable for smaller offices, reception desks, or breakrooms where a more inviting atmosphere is preferred.
The lamp is constructed with a shatterproof coating over a glass housing. This hybrid design offers the superior thermal management and structural rigidity of glass—ensuring the tube will not sag over its 24-inch span—while providing the safety of polycarbonate. If the lamp breaks, the coating contains the glass shards, making it compliant with NSF/ANSI standards for use in food service areas, laboratories, and high-traffic educational zones.
The G13 Medium Bi-Pin base is the universal standard for T8 fixtures, ensuring a secure and seamless fit into existing lampholders. At 23.78 inches in length, this lamp is specifically designed for 2-foot troffers, vanity fixtures, and under-cabinet lighting. Because it is a Dual Mode lamp, it can be installed in both shunted and non-shunted tombstones depending on the wiring configuration used during the retrofit.
Rated for 50,000 hours of operational life, this T8 LED drastically reduces the cost and frequency of maintenance cycles compared to traditional fluorescent technology. Keystone Technologies backs this product with a 5-year warranty, covering the internal driver and LED light engine. This long-term reliability ensures a stable ROI for commercial infrastructure upgrades.
