Sunblaster Propagation LEDs - Low-Heat Daylight Strips for Seedlings and Clones
Best for: Growers who want a slim, low-heat light strip specifically for seedlings, clones, and young plants, rather than a full-size veg or flower fixture.
Our thoughts
These are built for propagation specifically, not scaled-down flowering lights, and that shows in how little heat they throw off - you can run them close to trays of seedlings without scorching anything. Pick the length to match your tray or shelf rather than sizing up "just in case", since propagation doesn't need much light intensity to begin with.
The Sunblaster Propagation LED is a slim strip light designed specifically for the early stages of a plant's life - seedlings, clones, and young cuttings that need consistent light without the heat load of a full-size grow light. It runs at a 6400K colour temperature, mimicking natural daylight, and uses self-cooling LED technology that doesn't need a fan to manage heat output.
The strip format means it sits low and close over propagation trays or clone domes without shading itself, and the low heat output means you can position it much closer to seedlings than you could with fluorescent tubes or CFLs without risking heat stress.
How it compares
It's a dedicated propagation light rather than a general-purpose grow light scaled down.
- Lower heat output than T5 fluorescent propagation tubes such as those from Envirogro, letting the light sit closer to seedlings
- More energy-efficient than older CFL-based propagation lamps, with a rated lifespan of around 50,000 hours
- Slimmer, lighter fixture than a full LED panel, purpose-built for trays and shelving rather than a whole tent
Not designed to flower a plant - it's specifically for getting seedlings and clones through their earliest, most delicate stage.
Usage guidance
Choosing a length
Match the strip length to your tray or shelf width - available from 30cm up to 120cm - so light spreads evenly across all the plants underneath.
Positioning
Because heat output is low, the strip can be hung closer to seedlings than fluorescent or CFL propagation lights, but still leave a small gap to allow for growth.
Photoperiod
Run on a standard 16-18 hour photoperiod for most seedlings and cuttings during the propagation stage.
Moving on
Transition plants to a full veg or flower light once they've rooted and established - this strip is for the propagation stage, not ongoing growth.
Technical specifications
- Colour temperature: 6400K (daylight spectrum)
- Rated lifespan: Approx. 50,000 hours
- Cooling: Passive, self-cooling - no fan required
- Sizes available: 30cm (8W), 45cm (12W), 60cm (16W), 90cm (24W), 120cm (32W)
- Format: Slim strip light
- Intended use: Seedlings, clones, and young plants
Who this is for
- Growers with a dedicated propagation shelf, tray, or clone dome
- Anyone currently using fluorescent tubes or CFLs for seedlings who wants lower heat and better efficiency
- Growers running multiple tray sizes who need a range of strip lengths to match
Our take
For the specific job of getting seedlings and clones through their first weeks, this does exactly what it's meant to - low heat, consistent daylight spectrum, and a size to match most trays. Just don't expect it to carry a plant through flower.
One we sell a lot of for growers setting up a proper propagation area for the first time.
