Skip to main content

Save Additional 10% Off Secret Lighting LED - Prices Marked Down

(360) 800-5535 · Mon–Fri 9am–5pm PST

Login
0 Cart { % include 'bold-options-hybrid-cart-item-count' % }
Login
Mon-Fri 9am-5pm PST
(360) 800-5535 Email Us
Search
0 Cart
(360) 800-5535

Send Us a Message

Search

SECRET SL-680 MEGA LED grow light with a purple frame and many yellow and red LEDs, seen from below.
SECRET SL-680 MEGA LED grow light panel with a purple frame and a dense array of yellow LED diodes.
SECRET SL-680 MEGA LED grow light with silver reflective panels, purple frame, and central driver.
LED grow light spectrum showing peaks in blue, green, and red wavelengths, indicating a full-spectrum light.
SECRET SL-680 MEGA LED grow light with a purple frame and many yellow and red LEDs, seen from below.
SECRET SL-680 MEGA LED grow light panel with a purple frame and a dense array of yellow LED diodes.
SECRET SL-680 MEGA LED grow light with silver reflective panels, purple frame, and central driver.
LED grow light spectrum showing peaks in blue, green, and red wavelengths, indicating a full-spectrum light.
Ask Sage about this product

Secret Lighting LED SL-680 MEGA LED Grow Light

Official Secret Lighting LED Dealer Model: SL - 680 MEGA - 120V
$999.00 USD$799.00 USD$999.00 USD
 $999.00 USD
starting from 0% interest financing from /mo.

Payment Options

Options:Pay in Four, Pay Monthly
Amount:Up to $1,500 (Pay in 4)
Up to $10,000 (Monthly)
Schedule:Bi-weekly to Monthly
Term:6 weeks, 12 or 24 months
Interest:0% to 35.99% APR*
Credit Check?Soft Check Only
Schedule:Bi-weekly to Monthly
Term:6 weeks, 6 or 12 months
Interest:0% to 35.99% APR*
Credit Check?Soft Check Only
Finance up to:$4,000
Must apply on a desktop device.
Schedule:Flexible
Term:Up to 36 months
Interest:Processing fee + interest
Lease-to-Own?Yes
Amount:$500 to $10,000
Looking to finance equipment under your corporation? Learn more about Business Financing
  • Delivers 3.0 μmol/J efficiency to maximize biomass production while keeping energy overhead to a minimum.
  • Full spectrum diodes are mixed with 660nm deep red to trigger stronger flowering responses in heavy canopies.
  • Voltage options include 120V, 240V, and 277V to accommodate both home outlets and commercial power grids.
  • 5-year limited warranty
  • View More Details
⚡ ADDITIONAL SAVINGS Apply code at checkout for 10% off this item
SAVE10 Tap to copy
COPIED!

Earn 799 points for shopping and get $7.99 off your next order. Join Harvest Club for free.
Questions? Talk to a specialist. Mon–Fri, 9am–5pm PST
(360) 800-5535 Live Chat Available now
Free Shipping On Most Items* To the lower 48
Transparent Pricing Backed w/ price match guarantee
4.8/5 average Top Quality Store on Google
Secure Checkout SSL encrypted payments

Send Us a Message
Ask Sage about this product
VOLUME PRICING

Commercial & Bulk Purchasing

We support operations & licensed facilities with volume pricing, dedicated account managers, and custom equipment consultation.

Commercial Inquiry

Contact Information
THROUGH THE Cultivator's LENS Hands-On Evaluation

Who This Is For

  • You are upgrading your light because your current fixture lacks the red diodes needed to bulk up a maturing canopy.
  • You are moving to a multi-light setup because managing individual timers for every bar light is a massive headache.

What We Found

  • The onboard dimmer dial feels solid and lacks the sensitive dead zones we see on cheaper 600W bar lights.
  • We suggest this for 4x4 setups because the light spread hits the corners without creating a massive hot spot.

What Users Say

  • Users who moved from HPS say they stopped fighting heat spikes and saw a noticeable drop in their cooling costs.
  • Operators running multi-light rooms say the daisy-chain control saved them hours of manual intensity tuning.

Secret Lighting LED SL-680 MEGA LED Grow Light

Secret Lighting LED SL-680 MEGA LED Grow Light Topdown view

Struggling with inconsistent yields and high energy costs? The Secret Lighting SL-680 MEGA LED Grow Light is designed for growers who demand professional-grade power and peak efficiency in a versatile package. Whether you are growing in a specialized tent, on greenhouse benches, or in a dedicated grow room, the "MEGA" provides the intense, high-quality light needed to push your plants to their full genetic potential.

This fixture delivers a brilliant, full-spectrum white light optimized with additional 660nm red diodes to trigger robust photosynthesis and high-intensity flowering. For those looking to manage larger canopies, the SL-680 MEGA bridges the gap between smaller hobby lights and massive commercial units like the Secret Lighting LED SL-1000 LED Grow Light. With its industry-leading 3.0 μmol/J efficiency, you can maximize your output while keeping operational overhead to a minimum.

Precision control is at your fingertips with onboard dimming from 0 to 100 percent, or you can integrate the fixture into a larger system using the Secret Lighting LED Lighting Controller. This allows for advanced scheduling and sunrise/sunset programming for up to 250 fixtures. Explore the complete Secret Lighting collection to find the perfect lighting solution for every stage of your grow.

Features

🌈
Full Spectrum Lighting

Bright white light with 660nm red diodes supports plants from seedling through the flowering stage.

🔆
Onboard Dimming

Easily adjust light intensity from 0–100% for precise control over every growth phase.

⚡
High Efficiency

Leading 3.0 μmol/J efficacy ensures maximum light output with significantly lower energy consumption.

📐
Quantum Board Design

Ideal for single or shared setups, providing consistent, even coverage across your entire canopy.

🔌
Plug-and-Play Setup

Complete with all necessary cords, power supply, and mounting hardware for immediate installation.

🖥️
Scalable Control

Compatible with external controllers for advanced customization, scheduling, and multi-light management.

Specifications

Specification Value
Watts 680
Voltage 100-277V, 50-60Hz
Amperage 120V (5.66A) / 240V (2.83A) / 277V (2.45A)
PPF (Light Output) 2040 µmol/s
PPF/Watt 3.0 µmol/J
BTUs 2320
Operating Temp -4 to 95°F
Lifetime 50,000 hours
Mounting Height 6–36″ (152–914mm)
Certifications ETL, DLC, CE, Hort
IP Rating IP65
Dimensions 36″ x 35.43″ x 1.97″ (914 x 900 x 50mm)
Weight 17.0 lbs
Warranty 5 Years

Spectrum

Secret Lighting LED SL-680 MEGA Full Spectrum LED grow light spectrum chart

The SL-680 MEGA delivers a carefully tuned full spectrum output combining high-efficiency white diodes with dedicated 660nm deep red diodes to provide complete coverage across every stage of the plant lifecycle. The broad white base supports vigorous vegetative development, while the targeted deep red peak maximizes photosynthetic efficiency and drives robust flowering response — all at an industry-leading 3.0 μmol/J efficacy across the full 4'x4' flowering footprint.

Warranty

Secret Lighting LLC offers a 5-Year Limited Warranty on the SL-680 MEGA LED Grow Light.

FAQs

What is the recommended coverage area for the SL-680 MEGA?+

The SL-680 MEGA provides an optimal vegetative footprint of 5' x 5' and a flowering footprint of 4' x 4'.

Is this light suitable for humid grow environments?+

Yes, the fixture is IP65 wet-rated, making it durable and safe for use in humid or wet environments.

Can I control multiple SL-680 units at once?+

Absolutely. While it has onboard dimming, it is also compatible with the Secret Lighting Control system, which can manage up to 250 fixtures simultaneously.

What makes the "MEGA" spectrum different?+

It uses a high-quality full-spectrum white light base and enhances it with 660nm red diodes, which are specifically targeted to boost flower production and density.

Does it come with mounting hardware?+

Yes, the SL-680 MEGA is a plug-and-play system that includes all necessary power cords and mounting hardware for a quick setup.

Happy To Help

Questions About This Product?

Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)

Call (360) 800-5535

Why Trimleaf

Equipping home growers, craft producers, and commercial operations across North America since 2016.

10+
Years of Specialist Knowledge
4.8★
1947+ Verified Reviews
50,000+
Growers Served
120+
Top Equipment Brands in Stock

You may also like