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Secret Lighting LED SL-680 MEGA LED Grow Light

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About Secret Lighting LED SL-680 MEGA LED Grow Light:

Full Spectrum

Type

680W

Power

5' x 5'

Coverage

5 Years

Warranty


Secret Lighting LED SL-680 MEGA LED Grow Light

Secret Lighting SL-680 MEGA LED Grow Light


The Secret Lighting SL-680 MEGA LED Grow Light promotes power and efficiency for versatile lighting set-ups. 

The SL-680 MEGA LED Grow Light is made for growers who want maximum efficiency and versatility, whether growing in tents, on benches, or dedicated rooms. 

Whether used solo or in a shared lighting setup, this fixture delivers exceptional performance. 

Known as “MEGA” for its impressive power and adaptability, the SL-680 MEGA emits a bright, full-spectrum white light enhanced with 660nm red diodes. This combination promotes healthy plant growth and high-intensity flowering. With onboard dimming that adjusts from 0 - 100 percent, you have full control to tailor the light intensity to each growth stage with precision.

Designed for efficiency with an industry-leading 3.0 μmol/J output, this passively cooled fixture keeps energy use low while ensuring reliable operation. Its plug-and-play design simplifies setup, allowing you to grow in no time.

For larger-scale operations, the SL-680 MEGA  integrates seamlessly with the optional Secret Lighting Control (sold separately), enabling advanced features like external dimming, sunrise/sunset programming, and scheduling for up to 250 fixtures.

The SL-680 MEGA is ETL-certified and DLC Hort-listed, adhering to rigorous safety and efficiency standards. With an IP65 rating for wet environments, this fixture is durable and dependable, backed by a five-year warranty.

Secret Lighting LED SL-680 MEGA Highlights

Footprint

5 x 5 Vegetative and 4 x 4 Flowering Footprint

Light Spectrum

Full-spectrum + 660nm red diodes

Power and Output

680 watts, 3.0 μmol/J efficiency

Certifications and Warranty

ETL-certified, DLC Hort Listed, IP65 Wet Rated, Five-year warranty

Secret Lighting LED SL-680 MEGA Grow Light Features

Full Spectrum Lighting

Full Spectrum Lighting

The SL-680 MEGA features bright white light with added 660nm red diodes for all growth stages, from seedling to flowering.


Onboard Dimming

Onboard Dimming

Easily adjust light intensity from 0 - 100 percent for precise control.


High Efficiency

High Efficiency

The SL-680 MEGA delivers an industry-leading 3.0 μmol/J for energy savings and optimal performance.


Quantum Board Design

Quantum Board Design

The SL-680 MEGA is ideal for single or shared lighting setups, providing consistent coverage above the canopy.


Plug-and-Play Setup

Plug-and-Play Setup

The SL-680 MEGA includes all necessary cords, power supply, and mounting hardware for quick installation.


Scalable Control

Scalable Control

The SL-680 is compatible with the Secret Lighting Control (sold separately) for advanced customization and scheduling.



Secret LED Secret Lighting SL-680 MEGA LED Light Specifications

Watts 680
Voltage 100-277volts, 50-60hz
Amperage 120V (5.66A) / 240V (2.83A) / 277V (2.45A)
PPF (light output) 2040 µmol/s
PPF/Watt 3.0 µmol/J
BTU's 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’ (914x900x50mm)
Weight 17.0 lbs
Warranty 5 Years


Secret Lighting LED SL680 MEGA Manual


Secret Lighting LED SL-680 MEGA Warranty

Secret Lighting LLC offers a 5-Year Limited Warranty

Shipping & Returns

Order Processing & Shipping

We currently ship within the United States only. No international shipping is available at this time.

Order Processing:

  • Most orders are processed within 24-48 hours after being placed.
  • Some products may have extended processing times of 7-14 business days or more, which will be clearly indicated on the product page. If your order includes such items, you will receive an email from our team or be contacted directly to confirm the estimated shipping timeframe.

Shipping Times:

We partner with reliable national carriers to deliver your orders. While specific delivery times can vary, here's a general timeframe for each carrier:

  • USPS: Typically delivers between 9:00 AM and 5:00 PM, Monday through Saturday.
  • FedEx: Typically delivers between 8:00 AM and 8:00 PM, Monday through Friday, with some Saturday deliveries.
  • UPS: Typically delivers between 9:00 AM and 7:00 PM, Monday through Friday, with some Saturday deliveries.

Note:

  • These are estimated delivery hours and may vary depending on your location and specific delivery circumstances.
  • For the most accurate delivery information, please refer to the tracking details provided once your order has shipped.

Free Shipping

Free shipping on qualified items to the lower 48 states. Some that are not eligible are stated on their respective product information page. Learn more

Refunds & Returns

Cancellations are accepted within 24 hours of placing an order.
Returns are subject to each manufacturer's return policy. Please look into the return policy of the brand prior to ordering. Learn more

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