| Brand | Keystone Technologies |
|---|---|
| Wattage | 13W |
| Voltage | 120–277V or Ballast Dependent |
| Lumens | 1,950 |
| 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 | 1.10" D × 47.15" L |
| Warranty | 5-Year Warranty |
The Keystone 13W Dual Mode T8 LED is a versatile "Combo" lamp designed for maximum installation flexibility. It can function as a plug-and-play lamp (Type A) using the existing compatible ballast, or as a ballast bypass lamp (Type B) connected directly to 120–277V line voltage. This adaptability makes it an ideal solution for facility managers who want to reduce immediate labor costs while retaining the option to bypass the ballast in the future if it fails.
This 13W lamp delivers a concentrated 1,950 lumens, providing a high-efficacy replacement for standard 32W T8 fluorescent tubes. By producing equivalent light levels with over 50% energy savings, it significantly lowers the Lighting Power Density (LPD) of commercial office and classroom environments, ensuring compliance with 2026 Code Enforcement for energy sustainability.
A Color Rendering Index (CRI) of 80+ ensures that colors appear natural and balanced. In educational settings and corporate offices, this level of color accuracy is vital for maintaining visual comfort, reducing eye strain, and ensuring that physical and digital presentation materials are rendered with high-definition clarity.
This 13W T8 LED is available in 3500K (Neutral White), 4000K (Cool White), and 5000K (Daylight). The 4000K and 5000K options are the industry preference for enhancing focus and productivity in active workspaces, while 3500K offers a warmer, more balanced tone for hospitality or common area lighting.
The lamp is constructed with a shatterproof coating over a glass housing. This design provides the superior heat dissipation and structural rigidity of glass—ensuring the tube will not sag or yellow—while providing the safety of polycarbonate. If the lamp breaks, the coating contains the glass shards, making it safe for use in food service, healthcare, and educational facilities.
The G13 Medium Bi-Pin base is the universal standard for 4-foot T8 and T12 fixtures. This ensures a secure, seamless fit into existing lampholders. Because this is a Dual Mode lamp, it can be installed in both shunted and non-shunted tombstones depending on whether it is being used in a ballast-driven (Type A) or bypass (Type B) configuration.
Rated for 50,000 hours of operational life, this T8 LED drastically reduces the cost and frequency of maintenance cycles. Keystone Technologies backs this product with a 5-year warranty, covering the internal driver and light engine. This long-term reliability ensures a stable ROI for large-scale commercial lighting retrofits.
