The Flora-GLO T8, 30 W linear fluorescent aquarium bulb delivers a strong photosynthetic spectrum that is ideal for planted aquariums and terrariums. With a color temperature of 2800K, this normal output fluorescent bulb is strongly recommended for use in planted aquariums to ensure a broad red and blue spectral presence, which is ideal for stimulating strong plant growth. The bulb fits all suitable standard and electronic ballasts. Flora-GLO is recommended in combination with Life-GLO and Power-GLO bulbs. Size: 91 cm (36 in).