SMATFARM G6 140W Reef Light

The SMATFARM G6 is the bigger sibling of the SMATFARM 60W reef light. It has a 140W maximum output and six channels: white, blue, violet, ultraviolet, green and red. SMATFARM says it is meant for tanks of 20 gallons or more, and it is aimed at larger saltwater systems that need wide coverage.

Why six channels matter

Blue, violet and ultraviolet drive coral color and fluorescence. White, green and red balance the look so fish and rock do not appear purely blue to your eye. Being able to dim each one separately in 1% steps lets you tune the color you see without losing the blue that corals use.

Presets and scheduling

Built-in SPS, LPS and MIX modes give you a starting curve. From there you set sunrise, sunset and moonlight times. An OLED screen shows the menu and parameters, and you can program it from the touch buttons or the remote.

Several lights, one schedule

Long tanks usually need more than one fixture. The G6 supports 2.4G wireless master and slave group control: program the master and the rest follow it.

Heat and noise

A smart fan and full-coverage aluminum heatsink handle cooling, and SMATFARM rates the noise under 40dB.

Mounting

The oxidized aluminum bracket fits glass from 0.23 to 1.53 thick, or you can hang the light above an open top.

Using that power carefully

A light this strong can bleach corals if you run it near full output on day one. Start well below maximum, stretch the ramp times, and raise intensity in small steps over several weeks. Keep alkalinity and calcium stable, since faster growth under strong light uses them faster; a reliable two-part such as Seachem Reef Fusion helps.

Who should pick it

Reef keepers with medium to large tanks who want SPS-capable output with fine spectrum control, and who are comfortable spending time on programming. For a small soft coral tank, the 60W model is easier to live with.