... ,with finger light, LED lights, Filter 2,different delivery heads 3,adjustable flow controller aquarium ... 4501,with finger light, LED lights, Filter 2,different delivery heads 3,adjustable flow controller Model ... HL-450L = HL-450 + LED Usage1. Fountain 2. Aquarium3. garden/Farm irrigation 4 Aquarium Small fish ... it is connected only to properly grounding-type receptacle.2, Do not connect to any voltage other ...