Aquatic Life G3 T5 HO Hybrid 4-Lamp Mounting System Fixtures, Black. Available in 24", 36", 48" & 61" lengths for 18" wide (front to back) aquariums. Universal mounts included for EcoTech Radion (TM) and AI Hydra & AI Prime (TM) LED Fixtures. Kessil mounting brackets NOT included but will fit this fixture. This new mounting system with T5 HO lamp housings is for use with the Kessil 360, EcoTech Radion and AquaIllumination Prime LED fixtures. Suspension hardware included - Kessil mounting brackets, lamps, mounting arms and LED fixtures NOT included. Features: HEP (TM) Brand ballasts drive all T5 HO lamps, including popular ATI (TM) and Giesemann (TM) and work with 100-277 V,50-60 Hz electric and have end-of-life protection to prevent bad lamps from lighting; Silicone socket lamp endcaps protect pins of T5 HO lamps from moisture and salt creep; Reflector design keeps light output focused inside the aquarium; The G3 Hybrid fixture allows the power cords to exit the same side of the fixture for peninsula tanks; Better aesthetics with rounded corners and a thinner profile; The G3 uses the same LED brackets and suspension hardware as our G2 hybrid fixtures.