Note: These tubes will not work with any existing fluorescent ballast. You MUST bypass your current ballast upon install.
Are you looking for that perfect 4 foot T8 LED tube? Look no further. This series of Keystone LED tube lights has a shatterproof coated glass tube and a frosted lens that eliminates pixilation. There is no risk of broken glass - making them ideal for food service (in fact they are ETL Sanitation Listed NSF/ANSI Standard 2 - Food Equipment) applications. Keystones Direct Drive LED T8 tubes eliminate the need for an external driver or ballast. For new construction installations, simply connect the 120-277V line voltage directly to the sockets. (SPECIAL NOTE: These Fluorescent to LED Retrofit T8 tubes require NON-SHUNTED medium bi-pin G13 sockets. It is always prudent to replace the 'tombstone' sockets any time you retrofit a light fixture. For the Keystone Technologies LED T8 tubes be sure to replace your tombstone sockets with NON-SHUNTED sockets). For retrofit installations, bi-pass the existing ballast by cutting the wires and instead connect the 120 or 277 volt line voltage directly to the sockets. No ballast or driver is required. Making your retrofit project even easier, Keystone offers a four (4) socket, non-shunted wiring harness - complete with the quick disconnect connectors.
Here is the Keystone Technologies, 4 Foot frosted lens, T8 Medium Bi-Pin retrofit LED tube lights. Listed on the DLC Qualified Product List, part number KT-LED15T8-48GC-8(XX)-D /G3, has a Power Factor >0.9 and consumes just 15 watts of 120 to 277 volt 60 Hz energy. These LED T8 replacement tubes are non-dimmable, will produce 1,930 Lumens of light output (that's an awesome 127 Lumens Per Watt), has a CRI >83 and a rated life of up to 50,000 hours.
The physical dimensions of the 4 Foot T8 LED Tube Light Keystone LED LED retrofit are 47.15 long by 1.10 wide. Each KT-LED15T8-48GC-8(XX)-D /G3 LED T8 retrofit bulb has an internal driver and is wired live on one end only. The KT-LED15T8-48GC-8(XX)-D /G3, 15 watt LED T8 tube has been designed to retrofit existing linear fluorescent T8 or T12 installations, thereby reducing maintenance and energy expenditures in residential, commercial, retail displays, hotel, motel and resort applications and as an energy saving light source for new fixtures and installations. These LED retrofit bulbs carry a 5 Year Limited Warranty.
