Description
The Hortimol Slim 40W 4000K TLED T5 is a premium ultra-slim LED propagation light designed for growers who need powerful, uniform lighting in tight spaces. Built around high-quality Osram LEDs and Hortimol’s specialised FSG Full Spectrum Growing spectrum, this lightweight LED bar is ideal for seedlings, cuttings, clones, vertical farming systems, shelving units, propagation racks, and early-stage plant growth.
At just 1.5cm thin and weighing only 900g, the Hortimol Slim is designed to fit where traditional grow lights struggle. Whether you're mounting it under shelves, inside propagation stations, above clone trays, or across vertical farming racks, this bar delivers highly even PPFD distribution with virtually no radiant heat.
Unlike old-school fluorescent T5 propagation lighting, the Hortimol Slim uses efficient modern LEDs to provide significantly higher performance, lower power consumption, better reliability, and improved plant response.
Designed For Propagation & Fast Healthy Growth
The specialised 4000K FSG spectrum has been engineered specifically for rooting, propagation, vegetative growth, and young plants. Hortimol developed this spectrum to provide strong blue light energy around the 450nm range for compact, healthy growth while supplementing additional deep red energy around 660nm to improve photosynthetic efficiency and overall plant development.
The result is:
- Faster rooting and propagation response
- Compact internodal spacing
- Healthier early vegetative growth
- Stronger root development
- Improved uniformity across trays and shelves
- Lower stretching compared to warm household LEDs
The cool-running LED design also allows the fixture to be positioned much closer to plants compared to HID or fluorescent lighting, helping maximise PPFD without excessive heat stress.
Perfect For Vertical Farming & Shelf Growing
The Hortimol Slim range was heavily developed around modern vertical farming and propagation environments where space efficiency matters. The ultra-flat design makes it ideal for:
- Propagation shelves
- Clone stations
- Vertical farming systems
- Microgreen production
- Seedling racks
- Mother plant areas
- Supplemental side lighting
- Greenhouses and grow rooms
Thanks to its passive fanless cooling system, the unit runs silently with no moving parts, making it highly reliable for commercial or continuous-use environments.
Premium Build Quality
This isn’t a cheap flexi-strip LED pretending to be horticultural lighting. Hortimol has built this unit around premium components including 264 Osram LEDs, integrated IR diodes, high-quality drivers, aluminium construction, and secure BNC cabling connections.
The fixture is also rated IP65 waterproof, helping protect against humidity, splashing water, and dusty grow room environments.
Each unit includes a braided wire hanger kit for suspended installation, while the slim aluminium body can also be surface-mounted directly onto shelving or walls.
Key Features
- 40W ultra-efficient propagation LED
- 4000K FSG Full Spectrum Growing output
- 264 premium Osram LEDs
- Integrated IR diodes
- Excellent uniform PPFD distribution
- Ultra-slim 1.5cm profile
- Passive fanless cooling
- IP65 waterproof protection
- Low heat output for close canopy use
- Perfect for propagation and vertical farming
- Can be suspended or surface mounted
- Includes hanger kit
- High CRI 88 colour rendering
- Long lifespan LED technology
Technical Specifications
| Specification | Details |
|---|---|
| Power Consumption | 40W |
| Spectrum | FSG Full Spectrum Growing |
| Colour Temperature | 4000K |
| PPF Output | 92 μmol/s |
| Efficiency | 2.3 μmol/J |
| LED Type | 264 Osram LEDs + IR LEDs |
| CRI | 88 |
| Protection Rating | IP65 |
| Cooling | Passive / Fanless |
| Dimensions | 1200 x 130 x 38mm |
| Weight | Approx. 0.9kg |
| Cable Length | 1.55m with secure BNC connection |
| Certifications | CE, ETL, LM79 |
| Lifespan | Up to 78,000 hours L70 |
Why Growers Like The Hortimol Slim Series
There’s a reason growers running clone racks and propagation shelves move away from fluorescent tubes once they try proper propagation LEDs. Better efficiency, lower maintenance, lower heat output, tighter plant growth, and significantly better longevity.
The Hortimol Slim series delivers proper commercial-style propagation lighting in a compact, clean, professional fixture. For growers building serious propagation setups, vertical farming systems, or high-density shelf gardens, these bars make a lot of sense.
At The Hydro Bros, we particularly like how easy these are to integrate into shelving systems and propagation racks without dealing with bulky reflectors or excessive heat.
