Selection on Halco Prolume Double Ended Ceramic Metal Halide 70W and 150W Lamps for Aquariums and Waterscapes Halco Prolume Double Ended Ceramic Metal Halide Aquarium and Waterscape Lamps Available in T6 T7 T8 Shapes and R7s G12 Base Halco Prolume Double Ended Ceramic Metal Halide Aquarium and Waterscape Lamps Available in 70W and 150W