FEATURES & BENEFITS: ONLY ONE END NEEDS CONNECTION End cap with energetic logo is the active connecting end. The opposite is a non-wired dead end. Fixture ballast must be by passed. • DLC approved• Internal Driver! Internal driver is engineered at end of tube to help reduce and dissipate heat.• Slim Heat Sink! The slim heat sink design improves appearance and gives it a traditional fluorescent tube look.• Wider Beam Angle! Its 170 degree beam angle allows the tube to improve its light distribution with existing fixture reflectors.• Environmental Friendly! No UV or infrared radiation. Mercury-Free.• 5 years warranty