Cutting pack - SpectraLINE 90cm x2 - LED horticultural lighting for young plants and cuttings

This pack of LED horticultural bars can light young plants on an area of 90cm x 40cm. You can use this LED horticultural lamp for cuttings and for plants up to 20-30cm maximum.

Supplied with a cable to connect the systems between them.

A mechanical programmer is available (sold here) to adjust the lighting delay. We advise between 16 / 18h of lighting per day.

x 2

SpectraLINE 60 cm - LED lighting special cuttings - 1
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20cm connection cable for SpectraLINE
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Length

One of product is no longer available. This pack cant be purchased

Pack content

  • 100% horticultural spectrum optimised for cuttings, seedlings and young plants — faster rooting, stockier growth
  • Only 20W actual power draw with uniform coverage over 90 × 20 cm, no light drop-off at the edges
  • Ultra-compact (coin-thin profile), silent, fanless — perfect for shelves, mini greenhouses and grow cupboards
  • Plug & Play with 1.5m cable included — expandable by daisy-chaining multiple bars
  • Direct replacement for your T5 fluorescent tubes with less heat, lower consumption and longer lifespan

SpectraLINE 90cm 20W: the ideal horticultural LED lighting for your cuttings and young plants

Successful cuttings and seedlings start with the right lighting. Too often, young plants become leggy under aging fluorescent tubes or unsuitable lamps, compromising the rest of the grow cycle before it has even truly begun.

The SpectraLINE 90cm addresses this need precisely. This 20W horticultural LED bar delivers a light spectrum specifically designed for germination, cloning and supporting young plants indoors. Compact, silent and ready to use, it outperforms your old fluorescent tubes while cutting your energy consumption.

barre-eclairage-led-horticole-spectraline-30e SpectraLINE 30cm 5W - barre-eclairage-led-horticole-spectraline-30e
Horticultural LED lighting banner for plants

Why choose the SpectraLINE 90cm for your propagation space

A 100% horticultural spectrum with visible results

Unlike standard household lighting, the SpectraLINE emits a light spectrum entirely dedicated to plant growth. Its latest-generation SMD LEDs produce the wavelengths your cuttings actually need to develop a vigorous root system and dense foliage. The result: stockier, healthier plants that are better prepared for the next stage of the cycle.

Outstanding light uniformity

One of the classic drawbacks of fluorescent tubes is the loss of intensity at the ends. The SpectraLINE 90cm ensures even light distribution across its entire length, guaranteeing that every cutting receives the same amount of photons. No more spindly plants at the edges of your tray — all your young shoots develop uniformly.

A modular system that adapts to your space

You can daisy-chain multiple SpectraLINE bars together to cover exactly the area you need. Whether you run a small propagator or an entire shelf of cuttings, the system adapts to your setup. For a larger propagation area, check out the 2-pack SpectraLINE 90cm or the 3-bar 90cm packs for better coverage-to-price ratio.

SpectraLINE 90cm technical specifications

20W true power, zero waste

At just 20 watts of power draw, this horticultural LED bar converts most of the energy into usable light for your plants. Where a T5 fluorescent tube of equivalent length draws more power while losing a significant portion as heat, the SpectraLINE makes every watt count. Over 18 hours of daily use, the difference on your electricity bill becomes noticeable from the very first month.

Minimal footprint

The SpectraLINE's profile is barely thicker than a coin. This ultra-slim design allows installation in the tightest spaces: propagation shelves, mini greenhouses, grow cupboards or vertical racks. It mounts to the ceiling or hangs in minutes, with no bulky ballast or reflector required.

100% silent operation

With no fan or ballast, the SpectraLINE produces absolutely no noise. A significant advantage if your growing area is in a living room or office. You can run it day and night without the slightest sound disturbance.

Available in multiple lengths

The SpectraLINE range comes in 30, 60, 90 and 120cm to suit every configuration. The 90cm model strikes the best balance between light coverage and installation versatility. For humid environments, a waterproof IP65 version of the SpectraLINE 90cm is also available.

The SpectraLINE 90cm in real-world use

Propagation and cloning

Mount the bar 15–20cm above your cuttings for optimal rooting. The soft, even light prevents light stress while supplying the energy needed for root formation. Many growers make the mistake of using lighting that is too intense at this stage — the SpectraLINE delivers exactly the right intensity for delicate cuttings.

Germination and seedlings

As soon as your seedlings emerge, they need a close, consistent light source to prevent stretching. Thanks to its low heat output, the SpectraLINE can be positioned very close to young seedlings without any risk of burning. Your seedlings stay compact and develop sturdy stems from the very first days.

Mother plant maintenance

On a dedicated shelf, one or two SpectraLINE bars are enough to keep mother plants in the vegetative phase, ready to provide healthy cuttings year-round. To cover a larger area, the 4-pack SpectraLINE 90cm is a complete and cost-effective solution.

Expert tip: optimise your setup

To get the most out of your SpectraLINE, line the walls of your propagation space with reflective material. Reflected light significantly increases the number of photons reaching your plants without using a single extra watt. Also adjust the hanging height as your plants grow: start at 20cm for fresh cuttings, then gradually raise it as they develop.

Key takeaways

The SpectraLINE 90cm 20W is a horticultural LED lighting solution designed for growers who want to give their cuttings, seedlings and young plants the best possible start. Optimised spectrum, uniform light, easy installation, low energy consumption and silent operation — it delivers everything you expect from modern propagation lighting.

Modular and ultra-compact, it fits into any configuration and scales with your needs thanks to the ability to connect multiple bars. Whether you are starting out with a small propagation area or equipping a full rack, the SpectraLINE 90cm lays the foundation for successful indoor growing from the very first centimetres of growth.

Data sheet

Guarantee
2 years
  • Daisy-chain your SpectraLINE bars in series from a single outlet — fewer cables, more growing space
  • Dedicated keyed connectors: firm click-fit with zero play, no false contacts or micro-interruptions across the chain
  • Tool-free installation in seconds — add or remove a bar without disturbing the rest of the setup
  • Compatible with all standard SpectraLINE bars (30, 60 and 90 cm) — non-waterproof version only (no O-rings)

SpectraLINE daisy-chain cable: link your LED bars in series from a single outlet

Four bars, four power supplies, four cables on the floor and a power strip bursting at the seams — that's the daily reality for many indoor growers equipped with SpectraLINE bars. The SpectraLINE daisy-chain cable puts an end to this clutter by connecting your LED bars end to end from a single mains power point. The result: a clear growing space, a reliable setup and the kind of modularity you'll appreciate every time your configuration evolves.

Important note before ordering: this cable is designed exclusively for standard (non-waterproof) SpectraLINE bars. A simple way to tell: if your bars have rubber O-rings around the connectors, they belong to the IP65 range and require the dedicated SpectraLINE IP65 daisy-chain cable. The two connector formats are physically incompatible — forcing the connection will damage the pins and void your warranty.

What series daisy-chaining actually brings to your grow

Simplified wiring, freed-up space

Every additional bar plugged in individually adds another cable, takes up another outlet and further clutters the back of your shelves. With series daisy-chaining, everything runs through a single mains cord, no matter how many bars are linked together. Fewer cables means better airflow around your plants, less risk of accidental disconnection mid-light cycle, and a visually clean setup — especially in compact configurations like propagators or small racks.

Modularity that keeps pace with your actual needs

Two bars above a shelf today, an extra tier on your rack next week. The modular SpectraLINE system absorbs every change without rewiring: one more daisy-chain cable, one more bar, and your light coverage expands. No additional power strip, no changes to the existing circuit. That's the difference between a rigid setup and an installation designed to grow with your project.

A reliable electrical connection across the entire chain

This cable is not a generic adapter from a hardware store. It was engineered by BloomLED to fit SpectraLINE connectors precisely. The fit is firm with no lateral play, eliminating false contacts and micro-interruptions that can cause spectrum variations invisible to the eye but very real for your plants. The last bar in your chain receives the same voltage as the first: your lighting remains uniform across the entire growing area.

Compatibility, installation and limits you should know

Which bars can be daisy-chained?

The cable works with all standard SpectraLINE bars — 30 cm, 60 cm and 90 cm — in their non-waterproof version. To check, examine the connectors on your bars: no visible O-ring means you have the right range. If in doubt, the BloomLED technical team can confirm your reference in minutes.

If your environment is exposed to moisture — misting, aeroponics, open propagator — the SpectraLINE IP65 range is recommended. It is available as 3-pack IP65 60 cm bars with waterproof cables or 3-pack IP65 90 cm bars with cables included.

Tool-free connection, no electrical skills required

One end into the output of the first bar, the other into the input of the next. The connectors are keyed: it's impossible to plug them in the wrong way. The whole operation takes seconds with bare hands and can be repeated as many times as needed to extend your light chain. The double bracket for SpectraLINE makes mounting easier if you're working with a suspended setup.

Respect the daisy-chain limit

Expert tip: each SpectraLINE power supply supports a maximum number of bars in series. Exceeding this limit causes a gradual drop in brightness at the end of the chain — a subtle phenomenon, hard to spot visually, but one that can affect growth at the last positions. Check your power supply documentation for this value before extending your setup.

Use cases: from first seedlings to multi-tier racks

Cloning and germination

Three or four SpectraLINE bars lined up above a propagator, linked by daisy-chain cables, plugged into a single timer. One outlet used, perfectly uniform lighting across the entire cloning area with no shadow zones at the edges. For propagators exposed to condensation, the XL propagator kit with IP65 bars and waterproof cables remains the safest option.

Vertical racks and multi-tier growing

Each level receives one or more bars daisy-chained in series. The whole system runs from a single timer, with no separate cable per tier. This is the go-to configuration for growers who make the most of vertical space: a unified lighting system that's clear, easy to maintain, even across four or five levels. To round out your lighting setup, BloomLED offers a full range of horticultural LED grow lights suited to every stage of growth.

Mother plant maintenance

A mother plant area is constantly changing: one plant rotates out, another fills in. The daisy-chain cable lets you add or remove a bar in seconds without disrupting the rest of the chain. Your lit area adapts in real time to the number of plants present, with no electrical work needed.

Common mistake to avoid

Never mix standard and IP65 cables on the same chain. The telltale sign is simple: rubber O-rings on the connectors mean you're dealing with the waterproof range. In that case, only use the SpectraLINE IP65 daisy-chain cable. Forcing an incompatible connector bends the pins and voids the manufacturer's warranty. A quick glance at your bars before ordering is all it takes to avoid this issue.

The link that turns standalone bars into a true lighting system

The SpectraLINE daisy-chain cable is a simple accessory that radically transforms how your growing space is organised. A single mains connection instead of many, light coverage that expands bar by bar, a stable electrical contact that preserves spectrum uniformity across the entire chain — that's what sets a makeshift assembly apart from a modular, professional indoor setup.

Whether you're starting with two bars above a seed tray or fitting out a full multi-tier rack, this cable makes every expansion as easy as a click-fit connection. Just confirm your bars are standard SpectraLINE models — no O-rings on the connectors — and you're ready to daisy-chain.