Second that.. The prime is the clear winner for me
- it's a sleeker light, has a footprint of only 4.88" x 4.88", almost half the size of the razor. Don't mind that it's 0.4" thicker.
- tank mount allows you to tilt the light with a ball joint, so more degrees of freedom to adjust the light
- the programmable & pre-set features seems really versatile; can adjust each bulb intensity, play with color kelvin, etc. Controllable via phone app I think
- draws only 50w from the wall, and provides good coverage of 24" x 24", ideal for nano tank
just my own opinion so am open to other viewpoints from our bros & sis here!