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Mars Hydro FC 4000-EVO – 320W Samsung LM301H EVO, Full Spectrum Grow Light

$259.99

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Description

Dimmable LED Grow Light for 4x2 Indoor Gardens

Take full control of your growing environment with this powerful LED grow light. Built for serious growers, it delivers professional-grade results through high-efficiency Samsung LM301H EVO diodes, dimmable power output, and a precise full-spectrum design. Whether you’re optimizing a 4x2 grow tent, rack shelf, or indoor hydro setup — this model gives you consistent coverage without wasted energy.


Quick-Glance Benefits

🔆 Samsung LM301H EVO Chips Upgraded diodes for better light penetration and higher yields
⚙️ Dimmable Output Adjust intensity across all grow stages with easy onboard control
🌱 Full Spectrum Coverage Supports seedling, veg, and flowering with optimal PAR balance
📦 Fast, Free U.S. Shipping Quick delivery from our U.S. warehouses, no hidden fees



What’s Included

1x Mars Hydro FC 4000-EVO 320W LED Grow Light
1x Hanging Kit
1x Power Cord
1x User Manual

Note: To unlock smart app features, purchase the Mars Hydro iConnect Smart Controller separately.


Use It For

✔️ 4x2 Grow Tents
✔️ Vertical Racks
✔️ Indoor Hydroponics
✔️ Soil-Based Gardens


🔍 Standout Features

💡 2.85 μmol/J System Efficiency Delivers powerful photosynthetic output with low energy waste
📊 Optimized Light Uniformity Even PPFD distribution across a 4x2 ft canopy for consistent growth
🔌 Plug-and-Play Setup No assembly required — start growing right out of the box




Ready to upgrade your grow setup?

Order the Mars Hydro FC 4000-EVO today and take full control of your growing environment — with smarter dimming, full-spectrum output, and elite performance.


Mars Hydro FC 4000-EVO Specifications

More Information
WATTAGE 320W±5%@AC120-277V
Max Coverage 3'x5'
PPE 2.85μmol/j
PPF 912umol/S
Chip Brand Samsung lm301H EVO
Spectrum 650-665nm 2800-3000K 4800-5000K
Max Yield 3.5g/W
Voltage AC120-277V
Amps 2.715A@AC120V 1.343A@AC240V 1.169A@AC277V
BTU 1023
Certificate ETL,CE,UKCA,RoHS
Lifespan 50000H
WARRANTY 5 years
Dimension 44*14*2.5 inch
Product Countdown End Jun 23, 2025, 12:00:00 AM

Mars Hydro FC 4000-EVO User Manual


Mars Hydro FC 4000-EVO Warranty

Manufacturer Warranty: 5 Years
Covers defects in materials and workmanship
Support handled directly through Mars Hydro or our team


FAQ

Q: Will this light work in a 4x2 grow tent?
A: Yes — it's optimized specifically for 4x2 canopy coverage with uniform PPFD.

Q: Can I control this light with an app?
A: Yes, but you’ll need to purchase the Mars Hydro iConnect Smart Controller separately.

Q: What’s in the box?
A: The grow light, power cord, hanging kit, and user manual.

Q: Is this light good for full-cycle growing?
A: Absolutely — it’s full spectrum and dimmable, ideal for seedling to flower.

Q: What’s the warranty coverage?
A: A 5-year manufacturer warranty is included.

Q: How many diodes are in the light?
A: The FC 4000-EVO features 765 high-efficiency Samsung LM301H EVO diodes.

Q: How many grams per watt can it produce?
A: Under ideal conditions, this light can achieve up to 3.5 grams per watt — making it one of the best options for maximizing yield in a 4x2 grow tent.

 

Why Buy From US

Who We Are

At Garden GrowShop, we're not a faceless online retailer. We're a small, family-run business with real roots in the growing community. Every product we carry has been carefully chosen to meet the needs of both home growers and commercial operators — because we’ve walked in your shoes.

Personal, Knowledgeable Support
When you reach out to us, you’re not getting a canned reply or being passed between departments. You're talking to someone who actually knows the products, understands your challenges, and is here to help you succeed.

Transparent Pricing — No Gimmicks
We believe in fair, honest pricing. No inflated markups, no bait-and-switch tactics. If you ever find a better price on the same item, let us know — we’ll match it without the hassle.

Fast, Dependable Shipping
We ship directly from warehouses across the U.S. to get your order to you quickly and reliably. No inflated delivery timelines, and no surprise shipping fees — just smooth, on-time delivery you can count on.

A Partnership, Not a Transaction
Our customers stick with us because we treat them like partners. Whether you're outfitting a small indoor setup or managing a large-scale operation, we’re here to grow with you — not just sell you equipment.

Our Commitment
If something goes wrong, we don’t pass the buck. We work with you directly to make it right. That’s how we’ve built our business, and that’s how we plan to keep it.

Shipping/ Returns

Shipping Policy

Free Shipping Within the Continental U.S.

We offer free shipping on all orders over $200 shipped to addresses within the continental United States. Orders under $200 will have shipping calculated at checkout. There are no hidden fees or handling charges. The price you see at checkout is the final price you pay.

Order Processing

Orders are typically processed within 1–2 business days (Monday–Friday). If an item is temporarily backordered or delayed, we’ll notify you by email with an updated shipping estimate.

Shipping Confirmation & Tracking

Once your order has shipped, we’ll email you a shipping confirmation that includes tracking information. You can use this to monitor the delivery status of your package in real time.

Where Orders Ship From

We partner with trusted suppliers and manufacturers who maintain warehouse locations throughout the United States. Orders are typically shipped from the facility closest to your delivery address to ensure faster transit times and greater efficiency. Some orders may ship in multiple packages depending on item availability and warehouse location.

Estimated Delivery Time

Most orders arrive within 3–7 business days of shipping, depending on your location and the item’s warehouse origin. Freight items and oversized packages may take additional time.

Shipping Carriers

We use trusted carriers such as FedEx, UPS, USPS, and professional freight delivery services for large or heavy items. Depending on the size of your order, it may arrive in multiple packages or from multiple warehouses.

Delivery and Moving Disclaimer

Please note: We do not offer moving or installation services. For freight shipments or large items, carriers are only responsible for curbside delivery. Drivers are not required to move items inside your home, up stairs, or to specific locations. We strongly recommend having assistance available at the time of delivery for heavy or bulky shipments.

Address Accuracy & Order Changes

Please ensure your shipping address is correct at the time of checkout. Once an order has shipped, we are unable to change the delivery address or reroute the shipment. If you need to make changes to your order, contact us immediately after placing it.

Damaged or Lost Shipments

If your order arrives damaged or appears to be lost in transit, contact us within 48 hours of delivery (or expected delivery). We will work with the carrier to resolve the issue as quickly as possible.

Shipping Restrictions

We currently ship only to addresses within the continental United States. We do not ship to Alaska, Hawaii, U.S. territories, or international destinations.

Questions?

If you have questions about your order, delivery, or shipping process, feel free to reach out to us through our Contact Us page or via email (sales@gardengrowshop.com ). We’re here to help.

Start of Returns section 

Easy Returns, No Surprises

At Garden GrowShop, we stand behind the quality of every product we carry. But we also understand that sometimes things just don’t work out — and that’s okay. If you change your mind or the item isn’t quite what you expected, we’ve got you covered.

30-Day Return Guarantee

You have 30 days from the date of delivery to request a return for any reason. To start a return, simply email us at sales@gardengrowshop.com with your order number and we’ll walk you through the process.

Here’s what to expect:

  • You’ll receive clear return instructions from our team.

  • Once your item is received and inspected, we’ll issue a refund to your original payment method.

  • Items must be returned in “like new” condition, with all original packaging and accessories.

  • Return shipping costs are the responsibility of the customer.

“Like new” means no visible wear, damage, or missing parts. Items showing signs of use or misuse may not qualify for a refund.


Damaged or Defective Orders

If your order arrives damaged or defective, don’t worry — we’ll take care of it.

Here’s what to do:

  • Note any damage with the delivery driver when signing for the package.

  • Email photos and a description of the issue to sales@gardengrowshop.com on the same day you receive it.

  • We’ll cover the cost of return shipping and make sure a replacement is sent out quickly.

Please keep all original packaging in case a return is needed. This helps speed up the process and ensures a smooth resolution.


Order Cancellations

If you need to cancel your order, please contact us as soon as possible at sales@gardengrowshop.com or by phone.

  • Cancellations before shipment receive a full refund.

  • Cancellations after shipment will follow our standard return policy and may be subject to return shipping costs.


Important Return Notes:

  • Certain products may have brand-specific return restrictions, which will be noted on the product page.

  • Products purchased for temporary or single-use purposes (e.g. trade shows, promotional events) are not eligible for return.


We’re Here to Help

Our goal is to make returns and exchanges as easy as possible — with no stress and no surprises. If you’re unsure whether your order qualifies or just want to ask a question, don’t hesitate to reach out. We’re here to make sure you feel confident before and after your purchase.

Help Us Improve

We’d love to hear from you!
If you decided not to purchase today, we’d like to know what held you back. Your feedback helps us improve and serve you better.

 Was it the price, product description, reviews, shipping options, or something else? Tell us what made you hesitate, and we’ll send you a 5% discount code for your next order (valid on select products).

Why Garden GrowShop?

We’re an authorized dealer for every brand we sell—so you’ll always get full manufacturer warranties, premium support, and authentic gear direct from the source.

✅ Fast, tracked shipping on all orders
✅ 100% safe and secure checkout
✅ No restocking fees on returns
✅ Friendly U.S.-based support when you need it

Have questions? We're here to help. Whether you're just getting started or scaling up a full grow, our experts can guide you to the right gear.

Description

Dimmable LED Grow Light for 4x2 Indoor Gardens

Take full control of your growing environment with this powerful LED grow light. Built for serious growers, it delivers professional-grade results through high-efficiency Samsung LM301H EVO diodes, dimmable power output, and a precise full-spectrum design. Whether you’re optimizing a 4x2 grow tent, rack shelf, or indoor hydro setup — this model gives you consistent coverage without wasted energy.


Quick-Glance Benefits

🔆 Samsung LM301H EVO Chips Upgraded diodes for better light penetration and higher yields
⚙️ Dimmable Output Adjust intensity across all grow stages with easy onboard control
🌱 Full Spectrum Coverage Supports seedling, veg, and flowering with optimal PAR balance
📦 Fast, Free U.S. Shipping Quick delivery from our U.S. warehouses, no hidden fees



What’s Included

1x Mars Hydro FC 4000-EVO 320W LED Grow Light
1x Hanging Kit
1x Power Cord
1x User Manual

Note: To unlock smart app features, purchase the Mars Hydro iConnect Smart Controller separately.


Use It For

✔️ 4x2 Grow Tents
✔️ Vertical Racks
✔️ Indoor Hydroponics
✔️ Soil-Based Gardens


🔍 Standout Features

💡 2.85 μmol/J System Efficiency Delivers powerful photosynthetic output with low energy waste
📊 Optimized Light Uniformity Even PPFD distribution across a 4x2 ft canopy for consistent growth
🔌 Plug-and-Play Setup No assembly required — start growing right out of the box




Ready to upgrade your grow setup?

Order the Mars Hydro FC 4000-EVO today and take full control of your growing environment — with smarter dimming, full-spectrum output, and elite performance.


Mars Hydro FC 4000-EVO Specifications

More Information
WATTAGE 320W±5%@AC120-277V
Max Coverage 3'x5'
PPE 2.85μmol/j
PPF 912umol/S
Chip Brand Samsung lm301H EVO
Spectrum 650-665nm 2800-3000K 4800-5000K
Max Yield 3.5g/W
Voltage AC120-277V
Amps 2.715A@AC120V 1.343A@AC240V 1.169A@AC277V
BTU 1023
Certificate ETL,CE,UKCA,RoHS
Lifespan 50000H
WARRANTY 5 years
Dimension 44*14*2.5 inch
Product Countdown End Jun 23, 2025, 12:00:00 AM

Mars Hydro FC 4000-EVO User Manual


Mars Hydro FC 4000-EVO Warranty

Manufacturer Warranty: 5 Years
Covers defects in materials and workmanship
Support handled directly through Mars Hydro or our team


FAQ

Q: Will this light work in a 4x2 grow tent?
A: Yes — it's optimized specifically for 4x2 canopy coverage with uniform PPFD.

Q: Can I control this light with an app?
A: Yes, but you’ll need to purchase the Mars Hydro iConnect Smart Controller separately.

Q: What’s in the box?
A: The grow light, power cord, hanging kit, and user manual.

Q: Is this light good for full-cycle growing?
A: Absolutely — it’s full spectrum and dimmable, ideal for seedling to flower.

Q: What’s the warranty coverage?
A: A 5-year manufacturer warranty is included.

Q: How many diodes are in the light?
A: The FC 4000-EVO features 765 high-efficiency Samsung LM301H EVO diodes.

Q: How many grams per watt can it produce?
A: Under ideal conditions, this light can achieve up to 3.5 grams per watt — making it one of the best options for maximizing yield in a 4x2 grow tent.

 

Why Buy From US

Who We Are

At Garden GrowShop, we're not a faceless online retailer. We're a small, family-run business with real roots in the growing community. Every product we carry has been carefully chosen to meet the needs of both home growers and commercial operators — because we’ve walked in your shoes.

Personal, Knowledgeable Support
When you reach out to us, you’re not getting a canned reply or being passed between departments. You're talking to someone who actually knows the products, understands your challenges, and is here to help you succeed.

Transparent Pricing — No Gimmicks
We believe in fair, honest pricing. No inflated markups, no bait-and-switch tactics. If you ever find a better price on the same item, let us know — we’ll match it without the hassle.

Fast, Dependable Shipping
We ship directly from warehouses across the U.S. to get your order to you quickly and reliably. No inflated delivery timelines, and no surprise shipping fees — just smooth, on-time delivery you can count on.

A Partnership, Not a Transaction
Our customers stick with us because we treat them like partners. Whether you're outfitting a small indoor setup or managing a large-scale operation, we’re here to grow with you — not just sell you equipment.

Our Commitment
If something goes wrong, we don’t pass the buck. We work with you directly to make it right. That’s how we’ve built our business, and that’s how we plan to keep it.

Shipping/ Returns

Shipping Policy

Free Shipping Within the Continental U.S.

We offer free shipping on all orders over $200 shipped to addresses within the continental United States. Orders under $200 will have shipping calculated at checkout. There are no hidden fees or handling charges. The price you see at checkout is the final price you pay.

Order Processing

Orders are typically processed within 1–2 business days (Monday–Friday). If an item is temporarily backordered or delayed, we’ll notify you by email with an updated shipping estimate.

Shipping Confirmation & Tracking

Once your order has shipped, we’ll email you a shipping confirmation that includes tracking information. You can use this to monitor the delivery status of your package in real time.

Where Orders Ship From

We partner with trusted suppliers and manufacturers who maintain warehouse locations throughout the United States. Orders are typically shipped from the facility closest to your delivery address to ensure faster transit times and greater efficiency. Some orders may ship in multiple packages depending on item availability and warehouse location.

Estimated Delivery Time

Most orders arrive within 3–7 business days of shipping, depending on your location and the item’s warehouse origin. Freight items and oversized packages may take additional time.

Shipping Carriers

We use trusted carriers such as FedEx, UPS, USPS, and professional freight delivery services for large or heavy items. Depending on the size of your order, it may arrive in multiple packages or from multiple warehouses.

Delivery and Moving Disclaimer

Please note: We do not offer moving or installation services. For freight shipments or large items, carriers are only responsible for curbside delivery. Drivers are not required to move items inside your home, up stairs, or to specific locations. We strongly recommend having assistance available at the time of delivery for heavy or bulky shipments.

Address Accuracy & Order Changes

Please ensure your shipping address is correct at the time of checkout. Once an order has shipped, we are unable to change the delivery address or reroute the shipment. If you need to make changes to your order, contact us immediately after placing it.

Damaged or Lost Shipments

If your order arrives damaged or appears to be lost in transit, contact us within 48 hours of delivery (or expected delivery). We will work with the carrier to resolve the issue as quickly as possible.

Shipping Restrictions

We currently ship only to addresses within the continental United States. We do not ship to Alaska, Hawaii, U.S. territories, or international destinations.

Questions?

If you have questions about your order, delivery, or shipping process, feel free to reach out to us through our Contact Us page or via email (sales@gardengrowshop.com ). We’re here to help.

Start of Returns section 

Easy Returns, No Surprises

At Garden GrowShop, we stand behind the quality of every product we carry. But we also understand that sometimes things just don’t work out — and that’s okay. If you change your mind or the item isn’t quite what you expected, we’ve got you covered.

30-Day Return Guarantee

You have 30 days from the date of delivery to request a return for any reason. To start a return, simply email us at sales@gardengrowshop.com with your order number and we’ll walk you through the process.

Here’s what to expect:

  • You’ll receive clear return instructions from our team.

  • Once your item is received and inspected, we’ll issue a refund to your original payment method.

  • Items must be returned in “like new” condition, with all original packaging and accessories.

  • Return shipping costs are the responsibility of the customer.

“Like new” means no visible wear, damage, or missing parts. Items showing signs of use or misuse may not qualify for a refund.


Damaged or Defective Orders

If your order arrives damaged or defective, don’t worry — we’ll take care of it.

Here’s what to do:

  • Note any damage with the delivery driver when signing for the package.

  • Email photos and a description of the issue to sales@gardengrowshop.com on the same day you receive it.

  • We’ll cover the cost of return shipping and make sure a replacement is sent out quickly.

Please keep all original packaging in case a return is needed. This helps speed up the process and ensures a smooth resolution.


Order Cancellations

If you need to cancel your order, please contact us as soon as possible at sales@gardengrowshop.com or by phone.

  • Cancellations before shipment receive a full refund.

  • Cancellations after shipment will follow our standard return policy and may be subject to return shipping costs.


Important Return Notes:

  • Certain products may have brand-specific return restrictions, which will be noted on the product page.

  • Products purchased for temporary or single-use purposes (e.g. trade shows, promotional events) are not eligible for return.


We’re Here to Help

Our goal is to make returns and exchanges as easy as possible — with no stress and no surprises. If you’re unsure whether your order qualifies or just want to ask a question, don’t hesitate to reach out. We’re here to make sure you feel confident before and after your purchase.

Help Us Improve

We’d love to hear from you!
If you decided not to purchase today, we’d like to know what held you back. Your feedback helps us improve and serve you better.

 Was it the price, product description, reviews, shipping options, or something else? Tell us what made you hesitate, and we’ll send you a 5% discount code for your next order (valid on select products).

Why Garden GrowShop?

We’re an authorized dealer for every brand we sell—so you’ll always get full manufacturer warranties, premium support, and authentic gear direct from the source.

✅ Fast, tracked shipping on all orders
✅ 100% safe and secure checkout
✅ No restocking fees on returns
✅ Friendly U.S.-based support when you need it

Have questions? We're here to help. Whether you're just getting started or scaling up a full grow, our experts can guide you to the right gear.