F17T8/TL950 Bulb - 17W T8 Fluorescent 5000K 90CRI - Aquarium
"This F17T8/TL950 is a fluorescent lamp that uses 17 watts. It has a T8 lamp shape, and a G13 base. It has a 5000K color temperature, and a color rendering index of 90. The bulb has 800 initial lumens, and an average rated life of 20000 hours."