GE Lighting Ecolux® Watt-Miser® Straight 34-Watt T12 2-Pin G13 medium pin/plug-in base linear fluorescent lamp offers 1800 initial Lumens and 1500 mean Lumens for bright and crisp light output. It has efficacy of 53 LPW. It has color rendering index of 87 and color temperature rating of 4100K to ensure optimal light level in the surrounding. This lamp features sodalime glass lamp construction. It measures 48-Inch x 1.5-Inch Dia. Lamp comes with average life of 15000 hours. It withstands temperature rating of 15 deg C. Lamp is ideal for energy saving applications.