50% tri-band blue and 50% tri-band white spectrum. Best used for reef aquarium applications. Blue chlorophyll absorption is utilized in natural photosynthesis.

Life of bulb is approximately 4500 hours.

Includes 180-degree internal reflector.   

It’s not everyday that the keystone fluorescent bulb maker Ultraviolet Lighting Co. (formerly URI) releases a new color flavor but the reefkeeping community is sure to take note of their latest production INDIGO SUN 50% tri-band blue and 50% tri-band white spectrum.