Aquaponics germination kit for starting plants in sponge or rockwool before transfer

Germination kit shown in use for raising strong transplants before transplanting

Germination kit detail view with controlled humidity system for successful seedling propagation

Top-down view of germination kit with cells filled with moist grow medium for seedlings

Side view of a germination kit for preparing seedlings destined for aquaponic growing beds

Small germination kits with LED lighting: packs of 6

Name: Small germination kits with LED lighting: packs of 6
Brand: Univers Aquaponie
SKU: 3b43b9c9-a6c5-48c5-8f36-64b20c25fb58
Price: 9800.0 JPY
Availability: InStock

¥9,800

~~¥6,300~~ ¥9,800

(466 avis)

This set contains six mini-greenhouses of 12 cells each, giving 72 seedling cells in total, and each one has its own LED lamp with a timer. You can sow indoors without relying on a well-facing window.

Batch : 6 units

6 units

7/7 customer service by e-mail

Payment in instalments, free of charge

The summary

What you receive: six trays of 12 cells, each with its own lamp, dome, and watertight base.
The lighting: red, blue, and white LEDs, height-adjustable above the seedlings.
The timer: a 3, 6, or 12-hour cycle, set once and repeated every day.
The footprint: 19 by 15 centimetres and 17.4 cm tall, lamp included.
What it prevents: seedlings that etiolate, turn pale, and topple before transplanting.
How to choose: the lamp is worthwhile when the trays cannot be placed near a window.

Six seedling trays with integrated light, timer set to 3, 6 or 12 hours

The set includes six germination trays, 72 cells, and each tray has its own lamp. This is what allows you to sow in January in a room that never receives direct sunlight, without relying on a well-positioned window or moving your trays around throughout the day.

💡 What light changes

A seed germinates in the dark, whereas a seedling needs light as soon as it emerges. Deprived of light, it etiolates: the stem stretches, turns pale and eventually collapses, and the plant cannot be rescued at transplanting. This is the number one fault with winter seedlings, and it has nothing to do with temperature, which explains why many gardeners spend a long time looking at their heating as the culprit. The lamp on each tray combines red, blue and white, the wavelengths the plant uses to green up and grow upright.

🔁 The timer and the cycles

3 hours

This setting acts as a supplement, when the room already receives some natural light during part of the day.

6 hours

This is the standard setting for a bright room, but without direct sunlight on the surface.

12 hours

This cycle recreates a full day, for winter seedlings in a dark room.

The cycle is set once and repeats at the same time every day without any further thought on your part. That is what makes these trays useful in a room you do not visit every day, as your seedlings maintain their rhythm in your absence. The setting is chosen according to the light the room already receives, not the species being sown, most spring vegetables are perfectly happy with around twelve hours in total.

The background heat beneath the lamp

The lamp provides the light a seedling needs from the moment it emerges, whereas germination itself depends on the temperature of the grow medium. In a room that is both dark and cold, a heat mat slid under the trays adds warmth to complement the light, and it is the combination of both that produces consistent winter seedlings. Fill the cells with germination pods, which can be transplanted whole.

The lamp you leave on

A lamp left on for 24 hours a day accelerates nothing, which is precisely why the timer is capped at 12 hours. Do also make a habit of venting the dome gradually from germination onwards, as a closed, lit tray heats up faster than a closed tray in the dark. And measure the available height before ordering, since 17,4 cm will not fit under every shelf.

📏 The height of the lamp

The lamp adjusts in height, and that adjustment needs revisiting as your seedlings grow. Too low, and the light becomes too harsh for young leaves; too high, and the stem starts stretching towards it again. The whole unit stands 17.4 cm lamp included, which calls for a clear surface rather than a low shelf. Each tray measures 19 by 15 cm and is made from BPA-free PVC. Get into the habit of checking the distance every time you water, as a week is all it takes for a tray of tomatoes to close the gap.

🌙 The night rest period

The alternation between light and darkness is not simply a matter of saving energy, it is part of how the plant functions. Much of the respiration and migration of sugars towards the roots takes place during the dark period, and a seedling kept under continuous light develops a weaker root system beneath foliage that may otherwise look perfectly healthy. The problem only becomes apparent at transplanting, when the root ball falls apart. Set the timer to a proper cycle and let it do its job, rather than adding extra hours on days when your seedlings seem slow. A slow seedling in January is almost always one that lacks warmth at the grow medium level, not light.

Technical specifications

The essentials

Trays: 6Each with its own lamp, adjustable-vent dome and watertight base.
Cells: 72 in totalTwelve per tray, to be filled with the grow medium of your choice.
Lighting: LED red, blue, whiteThe wavelengths the plant uses to green up and grow upright.
Timer: 3, 6 or 12 hThe cycle is set once and repeats every day at the same time.
Lamp height: AdjustableTo be raised as the seedlings gain height.
Footprint: 19 × 15 × 17.4 cmPer shelf, lamp included: allow clear space above.

To budget for separately

A seedling grow medium: Vermiculite, pods or compostThe cells fill according to the species you sow.
Seeds: Vegetable seedsOne variety per tray makes it easier to track germination.

In the box

6 germination trays of 12 cells each
6 height-adjustable LED lights, with programmable timer
6 transparent domes with adjustable vents
6 watertight water-retention trays

Number of trays and cells, lighting spectrum, timer settings, dimensions and material: values stated by the supplier, recorded on 19/09/2026.

Integrated lighting or bare trays

Two sets of six germination trays with identical capacity, which are not fitted out in the same way.

Six trays, two levels of equipment The capacity is the same on both sides, 72 cells. The lamp and its timer affect the overall height of the kit and the level of attention it requires.

	Trays	Cells	Integrated LED lighting	Cycle timer	Gardening tools included	Height (cm)	Material	Price
Small germination kits: pack of 6 or 10Your choice	6	72	No	No	Yes	11,5 cm	Polypropylene	¥8,800
Recommended Small germination kits with LED lighting: packs of 6Your choice	6	72	Yes	Yes	No	17,4 cm	BPA-free PVC	¥9,800

Small germination kits: pack of 6 or 10

Capacity

Trays6

Cells72

Equipment

Integrated LED lightingNo

Cycle timerNo

Gardening tools includedYes

Format

Height (cm)11,5 cm

MaterialPolypropylene

Small germination kits with LED lighting: packs of 6Recommended

Capacity

Trays6

Cells72

Equipment

Integrated LED lightingYes

Cycle timerYes

Gardening tools includedNo

Format

Height (cm)17,4 cm

MaterialBPA-free PVC

Supplier descriptions checked on 19/09/2026.

Estimate your
delivery time

The six trays and their lights ship as a single parcel. The exact postage and final delivery times are shown at checkout once you have entered your address.

Frequently asked questions

8 questions

6 key questions, 8 in the detailed view

Why one lamp per tray rather than a single large bar?

How many hours of light are needed per day?

At what height should the light be set?

My seedlings are leggy: is it light or heat?

What does a red, blue, and white spectrum mean?

Should you keep the dome on when the light is running?

Do these trays fit on a kitchen shelf?

Integrated light or bare trays: what makes the difference?

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Small germination kits with LED lighting: packs of 6

The summary