SYLVANIA OCTRON CURVALUME ECOLOGIC lamps are T8 U-bend lamps available in a choice of performance options to satisfy the needs of most general 2' x 2' lighting applications. OCTRON CURVALUME ECOLOGIC 700 Series lamps offer standard performance with CRI of 75 and up to 28,000 hours average rated life. OCTRON CURVALUME ECOLOGIC 800 Series lamps deliver higher initial and maintained lumens than 700 series lamps with CRI of 82 making them suitable for applications where improved color and light levels are desired.