15 watt EarthBulb LED linear Type A tube is available in 4000K & 5000K with 300 degree beam angle. Great light output and a good choice for direct replacement of T8 fluorescent tubes. This linear tube provides 2200 lumens and has a CRI of 86. High power LED and an electronic internal driver provides 50,000 hours of LED life. UL Type A for “plug and play” on T8 Instant Start electronic ballasts. Download the ballast compatibility list below for a complete list of compatible ballast. DLC listed.