MH fixture choice any experience with theese?

I'm looking to get a clamp on MH fixture for my 45 cube and was wondering if anyone had good or bad experience with either of theese?
the 1st being Aquarium Lighting for Nano Reef Aquariums: JBJ Lighting K-2 Viper Deluxe HQI Metal Halide Fixture

and the 2nd Metal Halide Reef Aquarium Lighting: Aqualight Advanced Series HQI Metal Halide Fixture

and lastly Aquarium Metal Halide Lighting: AquaticLife Swing Arm HID Metal Halide Light Fixture

any review is appreciated and thanks in advance