How far should JB Fluorescent Propagation Light Fixtures be from seedlings and clones?

For seedlings and fresh clones, position JB Fluorescent Propagation Light Fixtures 30–60cm above the canopy to provide gentle, even light distribution without heat stress. As plants develop and roots establish, lower the light progressively or increase intensity to drive stronger vegetative growth. Avoid high-intensity light on fresh unrooted cuttings as this increases transpiration stress before roots are established to supply water.

How many hours of light per day should I run JB Fluorescent Propagation Light Fixtures during propagation?

Run JB Fluorescent Propagation Light Fixtures on an 18/6 or 20/4 schedule during propagation and vegetative growth. Continuous light (24/0) is sometimes used in commercial propagation to maximise rooting speed but can stress some genetics. An 18-hour photoperiod is the safest starting point for most crops and avoids the diminishing returns of continuous illumination.

Does JB Fluorescent Propagation Light Fixtures ship fast within Australia?

Yes — JB Fluorescent Propagation Light Fixtures ships from our Australian warehouse with fast tracked delivery Australia-wide. Most east coast orders arrive within 2–5 business days. WA, NT, and TAS orders typically arrive within 5–12 business days.

JB Fluorescent Propagation Light Fixtures | T5 Grow Lights (Australian Made)

Bare Batten 2 x 18W incl. lead (2 Foot)

$59.95

JB Fluorescent Propagation Light Fixtures | T5 Grow Lights (Australian Made)

$59.95

size and watts Bare Batten 2 x 18W incl. lead (2 Foot) Reflector for 18W Batten Troffer 2 x 18W with cord (2 Foot) Bare Batten 2 x 36W incl. lead (4 Foot) Reflector for 36W Battern Troffer 2 x 36W with cord (4 Foot)

Quick Answer

Made in Australia using 100% local materials, a proven low-heat propagation solution.
Designed for close-range placement over trays without heat-stressing sensitive seedlings.
Best suited to seedlings and early vegetative growth specifically, not full-cycle flowering.
4ft fixtures are over Australia Post's 105cm length limit. They ship by courier and freight is quoted separately.

Australian-made fluorescent propagation lighting for seedlings, clones & early vegetative growth.

JB Fluorescent Propagation Light Fixtures are made in Australia using 100% local materials, a proven, low-heat propagation solution used by growers for decades. Designed for close-range placement over trays and propagation areas, they deliver consistent, even light output without the heat stress that damages sensitive seedlings and cuttings.

Shipping on 4ft Fixtures

The 4ft battens and troffers are longer than 1050mm, which is Australia Post's maximum parcel length. They cannot go through the standard post network, so they are sent by courier instead.

If your order includes a 4ft fixture, we will contact you with a freight quote before dispatch. The 2ft 18W fixtures and the 18W reflector ship as a normal parcel. The 36W reflector is also freight quoted.

Why Fluorescent Still Works for Propagation

Even Light Distribution

Fluorescent tube fixtures distribute light uniformly across the full tray surface, no hotspots, no uneven germination. Every seedling and cutting receives consistent exposure from edge to edge.

Low Heat Output, Safe for Close Placement

Unlike HPS or high-wattage LED systems, fluorescent fixtures generate minimal heat at the lamp surface. This allows close placement directly above propagation trays without risk of heat stress or light burn to sensitive plant tissue.

Reliable, Proven Performance

Fluorescent propagation lighting has a decades-long track record in commercial nurseries and hobby grow rooms. Consistent output, simple operation, and low maintenance make it a dependable choice for growers who need results without complexity.

Australian Made

Made with 100% local materials and manufactured in Australia. Compatible with standard troffers and reflectors for flexible installation across propagation racks, grow tents, and nursery setups.

Compatible Lamps

Osram Daylight 18W, 2ft tube, ideal for compact propagation trays
Osram Daylight 36W, 4ft tube, ideal for larger propagation areas and racks

Specifications

Type: Fluorescent (T5 compatible)
Application: Propagation / Early vegetative
Heat Output: Low, safe for close placement
Origin: Australian Made
Compatibility: Standard troffers and reflectors

Is fluorescent lighting still effective for seedling propagation?

Yes. For propagation specifically, fluorescent fixtures remain highly effective, delivering the low-intensity, even light distribution that seedlings and clones require without the cost or complexity of LED propagation systems. For growers already running fluorescent setups, JB fixtures are a reliable, locally-made option.

What lamps are compatible with JB propagation fixtures?

JB fixtures are compatible with Osram Daylight tubes in 18W (2ft) and 36W (4ft) configurations. These are widely available and provide a daylight spectrum suited to early vegetative and propagation stages.

Suits

Seed germination
Clone propagation and cuttings
Indoor plant nurseries
Grow tents and propagation racks

Frequently Asked Questions

Why do the 4ft fixtures ship differently?

They are longer than Australia Post's 1050mm maximum parcel length, so they go by courier instead. We quote the freight before dispatch rather than guessing at checkout.

How far should the fixtures be from seedlings and clones?

For seedlings and fresh clones, position them 30 to 60cm above the canopy to provide gentle, even light distribution without heat stress. As plants develop and roots establish, lower the light progressively. Avoid high-intensity light on fresh unrooted cuttings as this increases transpiration stress before roots can supply water.

How many hours of light per day should I run during propagation?

An 18/6 or 20/4 schedule during propagation and vegetative growth. Continuous light is sometimes used commercially to maximise rooting speed but can stress some genetics. 18 hours is the safest starting point.