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The 2026 Spider Farmer SF4000 delivers the dependable performance growers expect from the SF Series, now powered by premium high-efficiency Bridgelux LEDs. Its upgraded diode layout produces strong, even illumination while maintaining reliable output and excellent canopy penetration. Built for long-term indoor growing, the SF4000 provides an efficient and durable lighting solution for growers who want consistent results from seedling through harvest.
The Spider Farmer SF4000 is a dimmable 450-watt full-spectrum LED grow light designed for complete 4×4 flowering coverage and up to 5×5 vegetative coverage. It is ideal for home growers and experienced cultivators who want efficient lighting, strong canopy penetration, quiet operation, and dependable performance throughout every stage of plant growth.
The SF4000 gives growers powerful full-spectrum coverage without the excessive heat, noise, or energy use associated with older indoor grow lights. Its efficient diode layout allows each LED to operate under less stress, helping improve thermal stability and extend the usable life of the fixture. For growers running a 4×4 tent, it provides the coverage and intensity needed for an entire grow cycle without requiring multiple smaller lights.
Give your plants dependable full-spectrum lighting with the coverage, efficiency, and control needed for a successful indoor grow. The 2026 Spider Farmer SF4000 combines premium Bridgelux LEDs, adjustable intensity, silent operation, and proven SF Series performance in one durable 450-watt fixture.
The following items are included only when purchasing the SF4000 + GGS Controller Kit:
The SF4000 is best suited for a 4×4 grow tent when flowering. It can provide vegetative coverage across an area of up to approximately 5×5.
Yes. Its full-spectrum output includes white, blue, red, and infrared wavelengths to support seedlings, vegetative growth, flowering, and fruit production.
No. The 2026 version has been upgraded to premium high-efficiency Bridgelux LEDs. Spider Farmer increased the diode count and optimized the layout to maintain dependable efficacy, output, and light uniformity.
Yes. A built-in dimming knob allows you to adjust the light intensity according to your plants’ stage of growth.
Yes. Compatible fixtures can be connected for unified dimming, which is useful for larger grow rooms and commercial cultivation areas.
No. It uses a fanless aluminum heat-dissipation design, allowing it to operate silently.
Spider Farmer recommends pairing the SF4000 with a 6-inch ventilation fan, although the correct ventilation setup may vary based on tent size, room temperature, humidity, and other installed equipment.
The GGS Controller Kit adds remote light control, environmental sensing, sunrise and sunset simulation, overheat protection, and additional smart-growing functions.
Most in-stock orders are dispatched from a local warehouse within one to three business days. Preorder products may require additional processing time.
Returns are accepted within 30 days of receipt, subject to the applicable return conditions and policy requirements.
The 2026 Spider Farmer SF4000 is covered by Spider Farmer’s official 5-year manufacturer warranty. Warranty service is subject to Spider Farmer’s terms, eligibility requirements, and product-use conditions.
Customers also receive continued product support from Spider Farmer and Garden GrowShop for help with setup, operation, and warranty-related questions.
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.
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.
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.
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.
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.
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.
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.
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.
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.
We currently ship only to addresses within the continental United States. We do not ship to Alaska, Hawaii, U.S. territories, or international destinations.
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.
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.
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.
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.
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.
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.
The 2026 Spider Farmer SF4000 delivers the dependable performance growers expect from the SF Series, now powered by premium high-efficiency Bridgelux LEDs. Its upgraded diode layout produces strong, even illumination while maintaining reliable output and excellent canopy penetration. Built for long-term indoor growing, the SF4000 provides an efficient and durable lighting solution for growers who want consistent results from seedling through harvest.
The Spider Farmer SF4000 is a dimmable 450-watt full-spectrum LED grow light designed for complete 4×4 flowering coverage and up to 5×5 vegetative coverage. It is ideal for home growers and experienced cultivators who want efficient lighting, strong canopy penetration, quiet operation, and dependable performance throughout every stage of plant growth.
The SF4000 gives growers powerful full-spectrum coverage without the excessive heat, noise, or energy use associated with older indoor grow lights. Its efficient diode layout allows each LED to operate under less stress, helping improve thermal stability and extend the usable life of the fixture. For growers running a 4×4 tent, it provides the coverage and intensity needed for an entire grow cycle without requiring multiple smaller lights.
Give your plants dependable full-spectrum lighting with the coverage, efficiency, and control needed for a successful indoor grow. The 2026 Spider Farmer SF4000 combines premium Bridgelux LEDs, adjustable intensity, silent operation, and proven SF Series performance in one durable 450-watt fixture.
The following items are included only when purchasing the SF4000 + GGS Controller Kit:
The SF4000 is best suited for a 4×4 grow tent when flowering. It can provide vegetative coverage across an area of up to approximately 5×5.
Yes. Its full-spectrum output includes white, blue, red, and infrared wavelengths to support seedlings, vegetative growth, flowering, and fruit production.
No. The 2026 version has been upgraded to premium high-efficiency Bridgelux LEDs. Spider Farmer increased the diode count and optimized the layout to maintain dependable efficacy, output, and light uniformity.
Yes. A built-in dimming knob allows you to adjust the light intensity according to your plants’ stage of growth.
Yes. Compatible fixtures can be connected for unified dimming, which is useful for larger grow rooms and commercial cultivation areas.
No. It uses a fanless aluminum heat-dissipation design, allowing it to operate silently.
Spider Farmer recommends pairing the SF4000 with a 6-inch ventilation fan, although the correct ventilation setup may vary based on tent size, room temperature, humidity, and other installed equipment.
The GGS Controller Kit adds remote light control, environmental sensing, sunrise and sunset simulation, overheat protection, and additional smart-growing functions.
Most in-stock orders are dispatched from a local warehouse within one to three business days. Preorder products may require additional processing time.
Returns are accepted within 30 days of receipt, subject to the applicable return conditions and policy requirements.
The 2026 Spider Farmer SF4000 is covered by Spider Farmer’s official 5-year manufacturer warranty. Warranty service is subject to Spider Farmer’s terms, eligibility requirements, and product-use conditions.
Customers also receive continued product support from Spider Farmer and Garden GrowShop for help with setup, operation, and warranty-related questions.
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.
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.
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.
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.
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.
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.
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.
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.
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.
We currently ship only to addresses within the continental United States. We do not ship to Alaska, Hawaii, U.S. territories, or international destinations.
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.
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.
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.
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.
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.
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.
