Too Much Light? Myth or Real Threat in Indoor Growing?

Can you have too much light in indoor cannabis growing? Learn how excess light affects plants, symptoms of light stress, optimal PPFD and DLI values, and how to set LED and HPS lamps to avoid losing both yield and money.

LED Brand Test: Mars Hydro, Spider Farmer, Viparspectra

Which LED grow light brand performs best for cannabis? We compare Mars Hydro, Spider Farmer, and Viparspectra: real PPFD data, prices in euros, grower reviews, and harvest results. Find out which one offers the best value for money.

Lamp Showdown: LED vs. HPS in Practice

LED or HPS? We compare the classic 600W HPS with modern 300–350W LEDs. Check out electricity costs, growroom temperature, and real yields to choose the best lamp for your grow.

Light and Cycles — From Seedling to Harvest

How should you set the light schedule in cannabis cultivation? 18/6, 12/12, or maybe 24h? Learn how to adjust cycles from seedling to flowering, and discover unusual schedules for autoflowers and fast harvests.

3 Days of Darkness Before Harvest — Myth or Game-Changer?

Do three days of darkness right before harvest really increase resin and THC levels? Let’s break down this popular technique, grower opinions, and what science actually says.

2×4 setups: budget vs. premium (shopping list, real yields)

Grow tent 120×60 cm — comparison of budget and premium setups. Shopping list, electricity costs, and real yields. What does an extra €800 investment really bring?

Foxtails: fix or ignore? When it’s a problem, and when it’s “just the cultivar”

Foxtailing in cannabis: when it’s a light/heat problem vs. just the cultivar. How to stop it in 24–48 h and protect density, flavor, and resin.

Too close, too far? The golden LED distance — and how not to confuse light burn with deficiencies

Set the ideal LED-to-canopy distance: starter tables, light burn vs deficiencies, when to raise or dim, plus PPFD/DLI tips for an even, stress-free canopy.

DLI and PPFD without pro gear: how to set your light with a phone

Set grow light without pro gear: measure PPFD & DLI with a phone, quick DLI math, correct LED distance, targets for veg/flower — no light burn.

Lighting for Cannabis: How to Calculate the "Light Diet" from A to Z

PPFD, DLI, PPF, and PPE explained "in simple terms." Specific ranges for cannabis, calculation examples, and practical setup tips.

Light Cycle in the Vegetative and Flowering Stage

Master the cannabis light cycle for indoor growing. Vegetative phase, flowering, photoperiod vs auto — a hands-on guide for beginners and seasoned growers

How to Safely Connect Electrical Equipment in Your Growroom?

Electrical safety is one of the most frequently overlooked yet crucial aspects of home cannabis cultivation. A growroom requires reliable power sources for lights, fans, humidifiers, timers, and other devices that, combined, can place a heavy load on the system. A poorly planned electrical setup can lead to overloads, short circuits, or even fires. In this article, we explain how to safely design