Question 1

What grow light should I buy for indoor plants in India?

Accepted Answer

For most home growers, a full-spectrum LED panel (white light with enhanced red/blue) in the 100–200W range is ideal—it covers a 2x2 to 3x3 ft area, costs ₹3,000–8,000, runs cool, and works for herbs, greens, and flowering plants.

Question 2

What is PPFD and why does it matter?

Accepted Answer

PPFD (Photosynthetic Photon Flux Density) measures how many light particles (photons) hit your plant's leaves per second per square meter—it's the single most important number for choosing a grow light because it directly determines how fast your plants grow.

Question 3

How far should I hang my grow light from plants?

Accepted Answer

For LED panels: seedlings 45–75 cm, vegetative growth 30–60 cm, flowering 25–50 cm—but always check PPFD at canopy level with a light meter or app; closer isn't always better (light burn is real).

Question 4

How many hours should I run grow lights?

Accepted Answer

Most vegetables and herbs: 14–18 hours on, 6–10 hours off; leafy greens: 12–16 hours; flowering/fruiting plants: 12–14 hours during bloom stage; always give plants a dark period (they need 'rest' for cellular processes).

Question 5

Can I use regular LED bulbs as grow lights?

Accepted Answer

Regular white LED bulbs (6500K) provide some usable light but lack the red spectrum plants need for flowering and fruiting—they work as a stopgap for keeping plants alive but won't match a proper grow light for growth speed or yield.

Indoor Grow Lights for Plants: Complete Guide to LED, Spectrum, PPFD, DLI & Choosing the Right Light (India)

Indoor Grow Lights for Plants: Complete Guide to LED, Spectrum, PPFD, DLI & Choosing the Right Light (India)