Grand Master LED
Grand Master LED Grow Lights
💡 Designed by growers. Built for beasts.
Why Choose Grand Master LED?
Serious yields call for serious gear - and GML delivers. Their Tarantula series is trusted by commercial cultivators and next-level home growers alike.
-
🌈 4-channel full spectrum control for veg to flower
-
💥 4000+ PPF with premium Samsung & Osram diodes
-
🛡️ Predator IPM lights with UV-C to fight pests & pathogens
-
🧠 60+ customisable presets via onboard controller
-
🌧️ IP66 waterproof, foldable bars for easy installs
These lights are no joke - massive output, rugged design, and tech that lets you dial in every variable. Whether you're stacking racks or fine-tuning genetics, Grand Master LED helps you push plants to peak performance.
Works across hydro, coco, and soil. Just bring the ambition.
Building your lighting zone? Pair with Grow Light Controllers & Timers for total automation.
Welcome to The Grow Guys
We built The Grow Guys from the soil up — well, coco and perlite. Before we sold gear, we bought it, ran it, and learned the hard way what's worth the money and what ends up in the shed. That's the filter everything on our shelves passes through. No sales scripts, no rebadged junk, no telling you what you want to hear. Just gear we'd run ourselves and advice from people who actually grow. Chasing higher yields, tighter flowers, or your first harvest? You're in the right place.
FAQs
How much is shipping?
Calculated at checkout by weight and destination. Free shipping over $499*.
How fast do you ship?
Order by 2pm and it ships the same business day from Invermay, Tasmania.
Why buy from The Grow Guys?
500+ products across 40+ brands, every one filtered through 14 years of real growing experience. Shipping Australia-wide.
What's your returns policy?
30-day change-of-mind returns on unopened, unused products. A 10% restocking fee applies and return shipping is at your cost.
Can I get advice before buying?
Call, email, or walk into the Invermay shop. You'll get a grower on the other end, not a script.
Still got a question?
Talk to a grower, not a script
Tell us your space and what you want to grow. We'll point you to the gear that fits, and tell you what you can skip.
Mon–Fri 8:30am–5:30pm · Sat 9am–3pm