Description
4 ft Replacement T8 LED Lamp | 25W | Type B Ballast Bypass | Single or Double Ended Wiring | Daylight
Keystone KT-LED25T8-48G-850-DX2 is a 25W 4 ft T8 LED replacement tube designed to replace conventional fluorescent lamps in compatible ballast bypass applications. This 5000K daylight lamp operates on 120-277V line voltage, uses a G13 medium bi-pin base, delivers 3000 lumens, and supports single-ended or double-ended wiring after the existing ballast is removed.
Product Specifications
- Brand: Keystone
- Model: KT-LED25T8-48G-850-DX2
- Product Type: T8 LED replacement lamp
- Operation Type: Type B ballast bypass
- Wiring Type: Single-ended or double-ended line voltage wiring
- Lamp Type: Linear
- Bulb Type: T8
- Nominal Length: 48 inches
- Body Length: 47.15 inches
- Illuminated Length: 42.63 inches
- Diameter: 1.10 inches
- Base Type: G13 medium bi-pin
- Wattage: 25W
- Input Voltage: 120-277V AC
- Color Temperature: 5000K
- Light Appearance: Daylight
- Lumens: 3000 lm
- Efficacy: 120 lm/W
- CRI: >83
- Beam Angle: 240 degrees
- Visible Light Area: 325 degrees
- Power Factor: >0.9
- Input Current: 0.20A at 120V / 0.09A at 277V
- Rated Life: 50,000 hours L70
- Lens: Frosted lens
- Driver Type: Integral isolated driver
- Dimmable: Yes, when used with an appropriate dimming accessory purchased separately
- Operating Temperature: -20 C to 45 C
- Classification: UL Classified
- Fixture Restriction: Not for use in sealed or vapor tight fixtures
- Pack Quantity: 25
- UPC: 843654123233
- Easy Code: TME-40
- DLC Product ID: PL1X888X4SI1
- Warranty: 10 years
Benefits
- Replaces conventional fluorescent T8 lamps in compatible ballast bypass fixtures.
- Single-ended or double-ended wiring gives contractors flexibility during retrofit installation.
- Integral isolated driver eliminates the need for an external driver or fluorescent ballast.
- Frosted lens helps reduce visible LED pixelation for a cleaner installed appearance.
- Instant startup provides full light output without warm-up time.
- Mercury-free LED construction supports environmentally friendly lighting upgrades.
- Rated for 50,000 hours to help reduce lamp replacement and maintenance frequency.
Applications
- Commercial fluorescent T8 retrofits
- Office lighting upgrades
- Retail lighting fixtures
- School and institutional lighting
- Warehouse and stockroom lighting
- Facility maintenance replacement projects
- General 4 ft T8 ballast bypass applications
