Far Red Light 730nm LED Strip

That 730nm far-red light acts as a powerful signal for plants, telling them the day is over. Used for 10-15 minutes after your main lights go out, a 730nm LED strip can accelerate the transition from vegetative growth to flowering. It's a trigger, basically, that helps manage the plant's internal clock and can shorten your flowering cycle.

You're right, it's not quite infrared, but it's very close. 730nm is considered 'far-red' light, sitting right on the edge of the visible spectrum before you get into true near-infrared lights like 850nm. Your eyes are not very sensitive to it, which is why a 730nm LED looks much dimmer than a 660nm deep red LED of the same power. But for plants and human cells, that wavelength is very potent.

Almost always use it with other wavelengths, especially 660nm deep red. The combination of 660nm and 730nm light creates a synergistic effect called the 'Emerson Effect,' which can significantly boost the rate of photosynthesis. For the most complete solution, our tri-spectrum horticulture strips combine 450nm blue, 660nm red, and 730nm far-red on one board.

There's no single perfect number, as it depends on the intensity of your 730nm LED strip and the plant type. A good starting point is typically 12 to 18 inches (30-45 cm) above the plant canopy. For higher-density strips, you might increase that distance to 24 inches to get a wider, more even spread. The key is to provide coverage without causing light stress.

They use the same foundational technology, but serve different purposes. A pre-built therapy lamp or panel is a plug-and-play consumer product. Our 730nm LED strips are professional components for building your own custom-sized panels, retrofitting a sauna, or creating unique setups. You get more control and can cover a larger area for less money, but you'll need to handle the wiring and power yourself.

That's a classic case of voltage drop, and it's the most common issue with any long LED strip run. The farther electricity travels down the copper PCB, the more voltage is lost. For our 730nm strips, we recommend using 24V for any run over 5 meters (16.4 ft). For longer runs, you'll need to inject power from both ends or use a new power feed. We explain it all in our voltage drop guide.

Yes, absolutely. Heat is the number one killer of LEDs, and the channel isn't just for looks—it's a critical heatsink. Without a channel to dissipate heat, the LED chips will overheat, causing their brightness to degrade much faster and significantly shortening their lifespan. For any high-density or long-duration application, aluminum LED channels are not optional.

It's a simple calculation. Check the product page for 'Watts per meter'. Multiply that number by the total length of your strip in meters (in this case, 5). Then, add a 20% safety margin. So, if the strip is 10W/meter, you'll need (10W x 5m) * 1.2 = 60 Watts. A 24V 60W power supply would be the minimum requirement.

They provide two different signals for plants. 660nm deep red light is a primary driver of photosynthesis—it's like the fuel for growth. 730nm far-red light, on the other hand, is more of a hormonal trigger that regulates flowering and shade-avoidance responses. The best horticulture setups use both. Think of 660nm as the gas pedal and 730nm as the gear shift.

Our 730nm LEDs are rated for L70 at 50,000 hours. That doesn't mean they'll burn out, but rather that after about 50,000 hours of use, they will likely be at 70% of their original brightness. This lifespan is entirely dependent on proper heat management. If you run the strip without a heatsink, you can expect that number to drop dramatically.

For almost any project, 24V is the better choice. A 24V system allows you to run double the length of a 730nm LED strip for the same amount of voltage drop as a 12V system. This means longer, more consistent runs, less wiring complexity, and smaller-gauge wires. We generally only recommend 12V for very short runs or in specific vehicle or battery-powered applications where 12V is the native voltage.

Yes, we build custom LED lighting solutions like this every day. A huge portion of what we ship is built to a customer's drawing and never appears on the site. Just send us a sketch or a description of what you need—the exact length, the desired IP rating (like IP67 for high humidity), and any specific connector or wire lead requirements. An engineer will send back a complete parts list and quote, usually within 12 hours. There's no fee for the consultation and no obligation to order.