SWITCH BETWEEN TWO LIGHT MODES: Sunlight Mode uses white & blue lights, and Moonlight Mode uses blue lights. QUICK INSTALL: Clip LED light into the front of the aquarium frame. UNIVERSAL USE: Add the universal use light stick to any framed aquarium. It works with light hoods or glass canopies with a rectangular shape. INCLUDED IN BOX: LED light stick, frame clip, cord routing clips, light switch, low-voltage transformer, hanger for drip loop and safety manual.