Keystone makes upgrading fluorescent lights to LED easy with our UL Type B DirectDrive tubes. These innovative LED tubes eliminate the need for an external driver or ballast. By using a ballast bypass design, there’s one less possible point of failure, making the fixture more reliable. Ballast bypass LED tubes will also save time finding a compatible ballast.
Upgrading fluorescent lights to LED will save time and money in maintenance costs. When a fluorescent light is frequently turned on and off the lifespan is reduced, whereas LED tubes aren’t affected nearly as much. Upgrading fluorescent lights to LED will also improve the quality and energy efficiency of a lighting system. UL Type B LED tubes prevent energy being wasted as it passes through a ballast.
Direct Drive LED tube benefits
- Improves reliability and efficiency of fixture with ballast bypass design
- Saves time, no need to find a compatible ballast
- Reduces maintenance costs compared to fluorescent equivalents
- Extends lifespan and conserves energy compared to fluorescent equivalents
Product Features
- Integral Keystone driver
- Environmentally friendly: no mercury used
- Frosted lens eliminates pixelation
- Suitable for use in dry and damp locations
- 140+ lumens per watt
- Improved lamp durability with shatterproof coated glass (optional)
- DLC listed
Direct Drive T8 Installation
Direct Drive T8 Case Study
Geno’s Steaks Glows 24 Hours a Day with Keystone’s LED Tubes
Challenge:
Geno’s Steaks, an iconic establishment in South Philadelphia, has been serving their famous cheesesteaks to tourists and locals alike for more than 50 years. Every day, thousands of hungry customers line up to order Geno’s amazing cheesesteaks, a Philly favorite. Overhead, the lights are burning 24 hours a day, 7 days a week, nearly 365 days a year, in both the customer areas and the kitchen. The monthly energy bill was on a steady uphill climb.
Geno’s primary goal was a lighting retrofit that would increase efficiency and reduce energy costs, but there were some additional considerations. Because they are open for business around the clock, scheduling lighting maintenance had been an on-going issue. They wanted a lighting product that was virtually maintenance-free. They also needed the quickest possible installation so that there would be minimal inconvenience to customers and staff, and no impact on business.
Products Used:
- Keystone Direct Drive T8 LED tubes
- Keystone Direct Drive Wiring Harness with Power Quick Disconnect
The Solution from Keystone:
Geno’s chose to retrofit with Keystone’s Direct Drive T8 LED tubes. Keystone’s Direct Drive technology bypasses the ballast and instead uses line voltage connected directly to the lamp sockets for maximum energy efficiency. No external ballast or driver is needed.
Geno’s also used Keystone’s innovative wiring harness, designed specifically for Direct Drive LED tube retrofit upgrades. The wiring harness eliminates much of the wiring work that would normally take place on the job site, drastically reducing installation time.
Result:
The installation of new LED lighting at Geno’s was completed in a single day, which was much faster than Geno’s anticipated. Costs for lighting have plummeted by 50%. And Geno’s has given an A+ for the impressive light output from the new LED tubes.
Tech Specs
- T8 LAMPS UNDER 8′
Catalog Number Color Length Input Voltage CRI Wattage Lumens Beam Angle Light Spread Efficacy Safety Coating Rebates Avail. IES File Download Spec Sheet GLASS CONSTRUCTION KT-LED7T8-18GC-830-D 3000K 18″ 120-277V >83 7W 700 240º 325º 100 lm/W Yes Download KT-LED7T8-18GC-840-D 4000K 18″ 120-277V >83 7W 750 240º 325º 107 lm/W Yes Download KT-LED7T8-18GC-850-D 5000K 18″ 120-277V >83 7W 800 240º 325º 114 lm/W Yes Download KT-LED7T8-18GC-865-D 6500K 18″ 120-277V >83 7W 800 240º 325º 114 lm/W Yes Download KT-LED7T8-24GC-830-D 3000K 24″ 120-277V >83 7W 850 240º 325º 121 lm/W Yes YES Download KT-LED7T8-24GC-835-D 3500K 24″ 120-277V >83 7W 850 240º 325º 121 lm/W Yes YES Download KT-LED7T8-24GC-840-D 4000K 24″ 120-277V >83 7W 900 240º 325º 129 lm/W Yes YES Download KT-LED7T8-24GC-850-D 5000K 24″ 120-277V >83 7W 950 240º 325º 136 lm/W Yes YES Download KT-LED7T8-24GC-865-D 6500K 24″ 120-277V >83 7W 950 240º 325º 136 lm/W Yes Download KT-LED10.5T8-48GC-830-D 3000K 48″ 120-277V >83 10.5W 1650 240º 325º 152 lm/W Yes Download KT-LED10.5T8-48GC-835-D 3500K 48″ 120-277V >83 10.5W 1700 240º 325º 156 lm/W Yes Download KT-LED10.5T8-48GC-840-D 4000K 48″ 120-277V >83 10.5W 1730 240º 325º 160 lm/W Yes Download KT-LED10.5T8-48GC-850-D 5000K 48″ 120-277V >83 10.5W 1750 240º 325º 162 lm/W Yes Download KT-LED12T8-36GC-830-D 3000K 36″ 120-277V >83 12W 1450 240º 325º 120 lm/W Yes YES Download KT-LED12T8-36GC-835-D 3500K 36″ 120-277V >83 12W 1450 240º 325º 120 lm/W Yes YES Download KT-LED12T8-36GC-840-D 4000K 36″ 120-277V >83 12W 1500 240º 325º 125 lm/W Yes YES Download KT-LED12T8-36GC-850-D 5000K 36″ 120-277V >83 12W 1550 240º 325º 129 lm/W Yes YES Download KT-LED12T8-36GC-865-D 6500K 36″ 120-277V >83 12W 1300 240º 325º 108 lm/W Yes YES Download KT-LED12.5T8-48GC-830-D 3000K 48″ 120-277V >83 12.5W 1700 240º 325º 129 lm/W Yes YES Download KT-LED12.5T8-48GC-835-D 3500K 48″ 120-277V >83 12.5W 1700 240º 325º 129 lm/W Yes YES Download KT-LED12.5T8-48GC-840-D 4000K 48″ 120-277V >83 12.5W 1750 240º 325º 132 lm/W Yes YES Download KT-LED12.5T8-48GC-850-D 5000K 48″ 120-277V >83 12.5W 1850 240º 325º 139 lm/W Yes YES Download KT-LED15T8-48GC-830-D /G3 3000K 48″ 120-277V >83 15W 1750 240º 325º 114 lm/W Yes YES Download KT-LED15T8-48GC-835-D /G3 3500K 48″ 120-277V >83 15W 1800 240º 325º 117 lm/W Yes YES Download KT-LED15T8-48GC-840-D /G3 4000K 48″ 120-277V >83 15W 1850 240º 325º 121 lm/W Yes YES Download KT-LED15T8-48GC-850-D /G3 5000K 48″ 120-277V >83 15W 1930 240º 325º 127 lm/W Yes YES Download KT-LED15T8-48GC-865-D /G3 6500K 48″ 120-277V >83 15W 1900 240º 325º 127 lm/W Yes Download KT-LED18.5T8-48GC-830-D 3000K 48″ 120-277V >83 18.5W 2400 240º 325º 130 lm/W Yes YES Download KT-LED18.5T8-48GC-835-D /G2 3500K 48″ 120-277V >83 18.5W 2450 240º 325º 132 lm/W Yes YES Download KT-LED18.5T8-48GC-840-D /G2 4000K 48″ 120-277V >83 18.5W 2500 240º 325º 135 lm/W Yes YES Download KT-LED18.5T8-48GC-850- /G2 5000K 48″ 120-277V >83 18.5W 2600 240º 325º 141 lm/W Yes YES Download KT-LED24T8-60GC-840-D 4000K 60″ 120-277V >83 24W 2400 240º 325º 100 lm/W Yes Download KT-LED24T8-60GC-850-D 5000K 60″ 120-277V >83 24W 2500 240º 325º 104 lm/W Yes Download KT-LED32T8-72GC-840-D 4000K 72″ 120-277V >83 32W 3300 240º 325º 103 lm/W Yes Download KT-LED32T8-72GC-850-D 5000K 72″ 120-277V >83 32W 3400 240º 325º 106 lm/W Yes Download KT-LED7T8-18G-830-D 3000K 18″ 120-277V >83 7W 700 240º 325º 100 lm/W No Download KT-LED7T8-18G-840-D 4000K 18″ 120-277V >83 7W 750 240º 325º 107 lm/W No Download KT-LED7T8-18G-850-D 5000K 18″ 120-277V >83 7W 800 240º 325º 114 lm/W No Download KT-LED7T8-18G-865-D 6500K 18″ 120-277V >83 7W 800 240º 325º 114 lm/W No Download KT-LED9T8-48G-835-D 3500K 48″ 120-277V >83 9W 1600 240º 325º 178 lm/W Yes Download KT-LED9T8-48G-840-D 4000K 48″ 120-277V >83 9W 1650 240º 325º 183 lm/W Yes Download KT-LED9T8-48G-850-D 5000K 48″ 120-277V >83 9W 1650 240º 325º 183 lm/W Yes Download KT-LED9T8-24G-865-D 6500K 24″ 120-277V >83 9W 1000 240º 325º 111 lm/W No Download KT-LED10.5T8-48G-830-D 3000K 48″ 120-277V >83 10.5W 1650 240º 325º 152 lm/W No YES Download KT-LED10.5T8-48G-835-D 3500K 48″ 120-277V >83 10.5W 1700 240º 325º 156 lm/W No YES Download KT-LED10.5T8-48G-840-D 4000K 48″ 120-277V >83 10.5W 1730 240º 325º 160 lm/W No YES Download KT-LED10.5T8-48G-850-D 5000K 48″ 120-277V >83 10.5W 1750 240º 325º 162 lm/W No YES Download KT-LED12T8-36G-830-D 3000K 36″ 120-277V >83 12W 1200 240º 325º 100 lm/W No Download KT-LED12T8-36G-840-D 4000K 36″ 120-277V >83 12W 1250 240º 325º 104 lm/W No Download KT-LED12T8-36G-850-D 5000K 36″ 120-277V >83 12W 1300 240º 325º 108 lm/W No Download KT-LED12T8-36G-865-D 6500K 36″ 120-277V >83 12W 1300 240º 325º 108 lm/W No Download KT-LED12.5T8-48G-830-D 3000K 48″ 120-277V >83 12.5W 1700 240º 325º 129 lm/W No YES Download KT-LED12.5T8-48G-835-D 3500K 48″ 120-277V >83 12.5W 1700 240º 325º 129 lm/W No YES Download KT-LED12.5T8-48G-840-D 4000K 48″ 120-277V >83 12.5W 1750 240º 325º 132 lm/W No YES Download KT-LED12.5T8-48G-850-D 5000K 48″ 120-277V >83 12.5W 1850 240º 325º 139 lm/W No YES Download - HiCRI
Catalog Number Color Length Input Voltage CRI Wattage Lumens Beam Angle Light Spread Efficacy Safety Coating IES File Download Spec Sheet KT-LED14.5T8-48GC-950-D-FDIM 5000K 48″ 120V >95 14.5W 1650 240º 325º 113 lm/W Yes Download KT-LED15T8-48GC-940-D 4000K 48″ 120-277V >90 15W 1625 240º 325º 108 lm/W Yes Download KT-LED15T8-48GC-950-D 5000K 48″ 120-277V >90 15W 1675 240º 325º 112 lm/W Yes Download - U-BEND T8
Catalog Number Color Width CRI Light
SpreadWattage Lumens Efficacy Safety Coating IES File Download Spec Sheet KT-LED18T8-U6GC-835-D 3500K 6″ U-Bend >80 325º 18W 2100 lm 116 lm/W Yes Download KT-LED18T8-U6GC-840-D 4000K 6″ U-Bend >80 325º 18W 2150 lm 119 lm/W Yes Download KT-LED18T8-U6GC-850-D 5000K 6″ U-Bend >80 325º 18W 2200 lm 122 lm/W Yes Download KT-LED15T8-U1G-835-D 3500K 1 5/8″ U-Bend >80 325º 15W 1700 lm 113 lm/W Download KT-LED15T8-U1G-840-D 4000K 1 5/8″ U-Bend >80 325º 15W 1780 lm 118 lm/W Download KT-LED15T8-U1G-850-D 5000K 1 5/8″ U-Bend >80 325º 15W 1800 lm 120 lm/W Download - 0-10V DIMMING T8 LED LAMP
Catalog Number Color Temp Length Input Voltage CRI Wattage Lumens Beam Angle Efficacy DLC 5.1 IES File Download Spec Sheet KT-LED7T8-24GC-835-D-VDIM 3500K 2ft 120-277V >80 7W 1000 161º 142 lm/W Yes Download KT-LED7T8-24GC-840-D-VDIM 4000K 2ft 120-277V >80 7W 1000 161º 142 lm/W Yes Download KT-LED7T8-24GC-850-D-VDIM 5000K 2ft 120-277V >80 7W 1000 161º 142 lm/W Yes Download KT-LED12T8-36GC-835-D-VDIM 3500K 3ft 120-277V >80 12W 1550 163.2º 130 lm/W Yes Download KT-LED12T8-36GC-840-D-VDIM 4000K 3ft 120-277V >80 12W 1550 163.2º 130 lm/W Yes Download KT-LED12T8-36GC-850-D-VDIM 5000K 3ft 120-277V >80 12W 1550 163.2º 130 lm/W Yes Download KT-LED10.5T8-48GC-835-D-VDIM 3500K 4ft 120-277V >80 10.5W 1700 132.3º 161 lm/W Yes Download KT-LED10.5T8-48GC-840-D-VDIM 4000K 4ft 120-277V >80 10.5W 1700 132.3º 161 lm/W Yes Download KT-LED10.5T8-48GC-850-D-VDIM 5000K 4ft 120-277V >80 10.5W 1700 132.3º 161 lm/W Yes Download KT-LED15T8-48GC-835-D-VDIM 3500K 4ft 120-277V >80 15W 1700 162.7º 146 lm/W Yes Download KT-LED15T8-48GC-840-D-VDIM 4000K 4ft 120-277V >80 15W 1700 162.7º 146 lm/W Yes Download KT-LED15T8-48GC-850-D-VDIM 5000K 4ft 120-277V >80 15W 1700 162.7º 146 lm/W Yes Download KT-LED18T8-48P-835-D-VDIM 3500K 4ft 120-277V >80 18W 1950 120º 108 lm/W No Download KT-LED18T8-48P-840-D-VDIM 4000K 4ft 120-277V >80 18W 2000 120º 111 lm/W No Download KT-LED18T8-48P-850-D-VDIM 5000K 4ft 120-277V >80 18W 2100 120º 117 lm/W No Download - TRIAC / FORWARD PHASE DIMMING T8 LED
LAMPCatalog Number Color Temp Length Input Voltage CRI Wattage Lumens Beam Angle Efficacy Safety Coating Spec Sheet KT-LED14.5T8-48GC-835-D-FDIM 3500K 48″ 120 >83 14.5W 1800 240º 124 lm/W Yes Download KT-LED14.5T8-48GC-840-D-FDIM 4000K 48″ 120 >83 14.5W 1900 240º 131 lm/W Yes Download KT-LED14.5T8-48GC-850-D-FDIM 5000K 48″ 120 >83 14.5W 1900 240º 131 lm/W Yes Download KT-LED14.5T8-48GC-950-D-FDIM 5000K 48″ 120V >95 14.5W 1650 240º 113 lm/W Yes Download - LINEAR T8 BLACK LIGHT
Catalog Number Color Temp Length Input Voltage CRI Wattage Lumens Efficacy Safety Coating Spec Sheet KT-LED12T8-48G-BL-D BL 48″ 120-277V >83 12W N/A N/A Download
Request a Lighting Layout
Keystone offers complementary lighting layout services for our products, to help take the next step in bringing your project to life. We can provide answers to your lighting questions to determine how many fixtures you need, what types of lamps are best for your applications, and how to save the maximum amount of energy, all within budget.
By utilizing industry leading lighting layout design software, we provide accurate and dependable application renderings. For new constructions or retrofit, simply provide Keystone with a few key project details, and our lighting designers will get to work on your request.
Request a Lighting Layout Create Your Own Indoor Lighting Layout Here