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LED Grow Lights

LED grow lights have become the standard for indoor and commercial cultivation, running cooler and more efficiently than HID or fluorescent setups. Whether you're outfitting a single 4x4 tent or a full commercial grow room, browse our full range below, from compact LED grow light bulbs for seedlings and clones, to full-size fixtures built for flowering rooms and commercial operations.

Secret Jardin TLED 42W Veg Bar with plastic hooks for easy hanging in tent grow environments or low-clearance grow racks
Full-length Secret Jardin TLED 42W LED light bar with veg-focused 6500K spectrum for seedling and clone development
$115.00 - $115.00
$115.00
$115.00 - $115.00
$115.00

Secret Jardin TLED 42 Watt Veg/Clone LED Bar

Secret Jardin

Compact 42W LED light with 85–264V range, deep penetration, and 30,000-hour lifespan. Ideal for small grow rooms or HPS support lighting. This 42W ...

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$115.00 - $115.00
$115.00
$115.00 - $115.00
$115.00

Choosing the Right Wattage for Your Space

LED grow light wattage should scale with your grow area, not just your budget. As a general guide:

Browse our wattage-specific collections — from 0-99W lights for propagation through to 800W+ commercial fixtures — to find the right fit for your space.

Full Spectrum vs. Targeted Spectrum

Most modern LED grow lights use a full spectrum output, mimicking natural sunlight across the growth cycle. This means one fixture can take a plant from seedling through to flower without needing to swap lights. If you're comparing full spectrum vs. single-spectrum grow lights for plants, full spectrum is generally the more flexible, lower-maintenance choice for most growers.

PPFD and Hanging Height

PPFD targets shift as your plants move through their growth stages, seedlings need far less intensity than a plant in late flower. Getting your hanging height and PPFD right at each stage protects your plants from light stress while maximizing growth.

Every light on this page is backed by a manufacturer warranty and money back guarantee.

Frequently Asked Questions

How much electricity do LED grow lights use?

The actual power use depends on the light’s wattage drawn from the wall, not the advertised number. High-efficiency grow lights typically use 200W to 1000W, depending on the size of your grow space and your plant’s needs. Always check the actual wattage listed in the product specs to know what you're really using.

How far should LED grow lights be from plants for optimal PPF?

It depends on your light's PPFD output and your coverage goals. Lower hanging heights deliver more intense light to a smaller area, while higher mounting heights spread light across a wider area with less intensity. A common example is hanging your light around 18 inches above the canopy for balanced coverage. Always refer to your light's PPFD chart for the best results.

How much do an LED grow light costs to run?

Your electricity cost depends on your light’s wattage and daily run time. For example, a 500W LED running 12 hours a day uses about 6 kWh daily. At an electricity rate of $0.15/kWh, that’sroughly $0.90 per day or $27 a month. Check your local energy rates and calculate based on how many hours your lights run.

How many LED grow lights do I need for the right PPFD across my canopy?

It's not about the number of lights per plant but about even PPFD coverage across your grow space. A single high-output light can cover a 4'×4' to 5'×5' space, supporting several plants. In dense canopies, using multiple lights or under-canopy fixtures ensures even PPFD from top to bottom.

Do you offer energy rebates for commercial setups?

Yes, we do! Many of the LED grow lights and climate control systems we carry qualify for local, state, and utility energy rebates that help lower upfront costs. To see what rebates you're eligible for, visit our Energy Rebates & Incentives Program page.