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Spring Discounts on LED Grow Lights and more! | VIEW DISCOUNTS
Spring Discounts on LED Grow Lights and more! | VIEW DISCOUNTS

Telos Growcast | Universal Lighting Controller | Precise PPFD

by Telos
Original price $179.99
Original price $179.99 - Original price $179.99
Original price $179.99
Current price $149.95
$149.95 - $149.95
Current price $149.95
in stock, ready to be shipped
  • Free EU shipping (duties/taxes not included)
  • Free shipping in the USA (lower 48 states)
  • Ships in 1-3 business days
Commercial / Bulk Discounts and Rebates Available

Email us or call 888-611-9305 TODAY! More info here.

Financing Options

Checkout and pay with Sezzle, Shop Pay Installments or PayPal Pay In 4.

Use Contain Inc for financing large projects.

Full Manufacturer's Warranty

Don't stress! ALL of our products come with a full manufacturer's warranty.

Telos Growcast is a universal lighting controller that helps growers to save energy and grow better plants. Growcast is compatible with many existing grow lights from major manufacturers.

Wirelessly connect to Growcast and control the precise PPF output (dimming) of your grow light. Say goodbye to mechanical timers by applying on/off timing schedules with an optional sunrise and sunset feature.

Growcast doesn’t need an internet connection to work and is instead programmed locally using the secure & encrypted Telos Mesh App, available for Android and iPhone.

The device has a simple plug-and-play set up and connects directly to the existing 1-10V dimming port available on most grow lights.

To check which type of connection interface your grow light has, head over to the Growcast Compatibility List.

**Growcast will ship with both Type 1 & Type 2 RJ11 cables. If you are using the Mammoth Lighting Mint series, please request a Type 3 cable from us and we will get it sent from Telos directly, on request.**



Universal compatibility

The Growcast doesn’t use proprietary connections that force you to buy a specific brand of grow lights. The goal was to make a universal controller that could connect to any dimmable light on the market.


Optimize your lighting schedules with Precise PPFD

Right now most growers are using dimmers that display a percentage that is completely inaccurate to the actual amount of light output their setting. The precise PPFD feature maps measured photometric data to your grow room and calculates the average PPFD value across the canopy in real-time.

Growcast sets the light output using quantifiable data and provides power consumption and efficiency monitoring.


Replace mechanical timers with smooth on/off dimming

With a Growcast connected you don’t need any heavy-duty contactor panels to switch your grow lights on and off. Simply set a schedule in the app and the Sunrise/Sunset feature smoothly dims your lights on and off from stand-by mode.

By gradually changing the power consumption you protect your equipment from current surges caused by switching large AC loads.


Technology Claim

Growcast uses a new, completely decentralized Bluetooth control technology called Telos Mesh. Simply plug your device in and tap “add”  in the Telos app and the networks created.

Each new Growcast added to the network increases the range, forwarding on messages to other devices rather than reporting back to a central router or controller.


Grow more efficiently with data-driven control

Optimise your lighting levels to maximise growth whilst saving energy. The precise PPFD control inside Telos Mesh allows growers to follow a lighting schedule in a similar way to existing feed/nutrient schedules. Growcast can help you get the most from your existing grow lights by keeping lighting levels below the light saturation point of your plants, avoiding energy wastage. 

All plants have what's known as a light saturation point. This is the point at which they have received too much light and the plant stops photosynthesizing. Plants naturally recover from reaching their saturation point and can stop/start this process several times a day, but recovery time varies from plant to plant. Once a plant reaches its saturation level, lights that remain on are simply wasting energy, as the plant can no longer use this light to photosynthesize.

Plants that are regularly over-saturated can develop slower due to the time required to recover from over-saturation. This effect can create a vicious circle where growers see slower development and try to add more light to remedy the problem which further slows development and wastes energy, incurring additional growing costs.

By keeping the light level below the saturation point for each week of growth the plants will grow noticeably faster and transpire less, reducing environmental management and water use. Below is an example of a PPFD schedule for short-day medical cannabis plants which was developed by Telos in collaboration with Telos' research partners.

Download PPFD Chart


Additional Features

Privacy lock- All wireless networks produce what's called an advertising signal so when you want to find and connect to the network it'll show up in a scan. We have developed a proprietary technology called network lock that allows you to quickly turn this advertising on/off for the whole network without impeding your own access. This feature can be hugely beneficial for data security, site security and for minimizing interference with other devices. 

Maintain your schedules even if there's been a power cut- Each Growcast has a cutting-edge supercapacitor backup circuit which allows the device to continue keeping the correct time for at least 24 hours. Unlike traditional battery backup circuits, the supercapacitor doesn't ever need to be changed for this function to keep working.

Make quick changes with the responsive touch control sensor- The Growcast has a built in water tolerant touch sensor so you can make quick changes to the output, unlock the network from privacy lock mode or reset the hardware at a touch of a button without needing to open the app. The touch sensor has specific software to reliably distinguish between being pressed by a person intentionally or having water dropped on it.

Get instant feedback with an intelligent RGB LED display- Each Growcast has a bright RGB display that can quickly and intuitively tell you what mode it's in and whether a schedule is running or not. During a lights-off period, the Growcast only emits green so that it doesn't interrupt the plant's circadian cycle.

Don't get stuck with obsolete tech- We've designed the Growcast with future mind and with the Telos ethos that growers should be able to update rather than replace. Powered by Nordic 52 series ICs the Growcast has phenomenal processing power along with huge amounts of ram and memory and is ready for all kinds of future control features. We've even designed NFC capabilities for future exciting user/mesh interactions.

Order Confirmation

As soon as you place the order, an order confirmation will be emailed to you. This means we have received your order and payment. Payment is captured as soon as the order is placed. In rare cases, if the product is on backorder or unavailable, we will contact you and ask if you would like to wait for the product to become available, switch your product, or have your payment refunded. If the item is available for shipment we will submit the order for processing and arrange shipment. Please see current estimated lead times on the product page for each product. 

***We cannot change the shipping address after the order is placed.***

Order Shipment

Most products ship within 2 to 3 business days from the date of your order (unless indicated on the product page). Some items take a bit longer to ship since they are built to order (i.e. ChilLED Tech, Trimmers, etc). We will send you tracking information as soon as it is available. If a week has gone by and you do not have tracking information yet, please reach out to us.

U.S. Shipping

We are based in Portland, Oregon with warehouses nationwide. We offer FREE shipping in the lower 48 states (sometimes to HI and AK, too) via FedEx, UPS, USPS or other major couriers (product/brand dependent). Expedited shipping is usually available for an extra cost. Contact us before your purchase if you prefer an expedited shipping method and we will get you a quote.

After the order is processed, allow 2 to 7 business days for the product(s) to reach you if shipped to a U.S. address. We can ship to PO boxes in some cases. We recommend using a street/residential address instead.

International Orders

Nearly all of our brands can be shipped internationally using FedEx, UPS, USPS, DHL or other couriers. Most quotes can be obtained at checkout. If not, please email us to receive a shipping quote for lights shipped outside of the USA. You may also place an order on our online store for items that require a quote and we will notify you via email on the exact shipping costs. 

Some items/brands can be shipped for free.

Items shipped internationally from the USA may have VAT, duties, taxes, and/or local charges due at delivery. These charges are the responsibility of the customer and not LED Grow Lights Depot.


If you need to cancel your order, we recommend reaching out to us ASAP. We charge a 2.9% (credit card), 3.5% (PayPal/Venmo), 4.0% (PayPal International), 4.1% (American Express), or 6.5% (Shop Pay Installments or Sezzle) order cancellation fee after the order was received. We can accommodate most requests, but due to the different time zones and schedules that our warehouses ship from, sometimes the cancellation request may not reach the warehouse in time before the product ships. Once the item has been arranged to ship or has shipped, the package will be treated like a 'return' and is subject to ship-back fees and restocking fees. If you purchased 'Route Package Protection', this can not be refunded after the order has shipped. 

All EZTrim orders are final and non-refundable or returnable.


See our full Return Policy for rules and guidance on returning an item after purchase and for brand-specific return dates. A 5-25% restocking fee (brand dependent) may apply for returns within the dates of the return policy. Reach out to us for exact return instructions and restocking fees for the item(s) that you purchased since these vary by brand. 'Route Package Protection' cannot be refunded if an item is returned en route or after you receive it.

If you have any questions or would like to check the availability of an item, you may email us here or call us at (888) 611-9305. Thank you for shopping with us.

We now offer Route package protection to help cover the cost of lost, damaged, or stolen packages.

What is Route Protect?

Adding Route Package Protection to your order at checkout means that your order is protected against being lost, damaged, or stolen. In the unfortunate instance that you experience one of these inconveniences, you can report an issue with Route and they will work with you to make sure you get the resolution you prefer. 

Purchased Route Protect and need to file a shipping issue? File here 

General shipping, tracking, and issues questions

Route Refunds vs Reorders

Refunds: When refunding an item, Route covers the subtotal of the order. Shipping costs, taxes, and the Route premium are not included.

Reorders: Route will reorder the items, but please note that items can only be replaced depending on in-stock availability. All reorders have Route Shipping Protection added, for free! 

What are Route’s Policies?

All policies are listed here 

Marked As Delivered (Stolen)

Issues can be approved no earlier than 5 and no later than 15 days from when it was marked delivered Orders over $100 USD require a police report

Stuck In Transit (Lost)

Issues can be approved no earlier than 7 days and no later than 30 days from the last update (US), 60 days from order dateIssues can be approved no earlier than 20 days and no later than 30 days from the last update (International), 60 days from order date


File issues for damaged items with photos of the package and item (required) and no later than 15 days from when it was marked delivered.

What if my order never arrives or is stolen?

To protect your order against loss or theft, add Route package protection at checkout. 

When you add Route Protect, you can easily file an issue for a lost, stolen, or damaged package. When you file an issue, it will be reviewed for approval for a reorder or refund within 1-2 business days. 

What if my order is damaged?

To protect your order against damage that occurred during shipping, add Route Protect (package protection) at checkout. 

When you add Route Protect at checkout, you can easily file an issue for a lost, stolen, or damaged package. When you file an issue, it will be reviewed for approval for a reorder or refund within 1-2 business days. 

If your order has defects or you suspect it was damaged during manufacturing, please reach out to us here and we will be happy to work with you to remedy the situation. 

How do I file a shipping issue for my lost, stolen or damaged order?

If you insured your order with Route Protect at checkout, you will receive a confirmation email from Route with a link to file a shipping issue. 

You can also file a shipping issue on Route’s app or via the web here

Haven’t downloaded the app yet? Download here

Does Route Protect cover stolen items?

Yes! When you insure your orders with Route Protect, stolen items are eligible for reorders or refunds.

What if I need to cancel or return my order?

LED Grow Lights Depot can only reimburse you for Route package protection if the order has not shipped yet. If an order is cancelled en route or if you want to return your order, we cannot refund you for the Route package protection. No partial refunds for Route will be granted.

What are Route’s terms and conditions? 

Route’s terms and conditions are listed here:

Is Route a licensed insurance company?

Yes. Route is a licensed insurance company with SEG Insurance Ltd. as its partner.

1) Thousands of Successfully Shipped Orders and Thrilled Customers

We have been in business since 2014 and are a highly-trusted online retailer offering honest grow advice and top-of-the-line LED grow lights and other grow/harvest/extraction equipment. We have thousands of 5-STAR PRODUCT REVIEWS from satisfied customers.


2) Small, Family-Run, Veteran-Owned Business

Founder/Owner Erik H. overseas that every customer is 100% satisfied with their purchase. If something is wrong, we will make it right, guaranteed! Call, email, or message us anytime and we will get back to you in about 1 business day or less (typically with-in minutes or hours during normal business hours). We have your back!


3) Free Discreet Shipping in the USA 

We offer FREE shipping in the lower 48 states via FedEx, UPS, USPS, or other popular couriers. We can ship most other products to Hawaii and Alaska for free too.


4) Reliable International Shipping Available

Nearly all of our brands can be shipped internationally using FedEx, UPS, USPS, DHL or similar couriers. Go through the checkout process to receive a shipping quote or contact us if a shipping quote is not available at checkout. 

Items shipped internationally from the US may have VAT, duties, taxes, and/or local charges due at delivery. 


5) No Sales Tax in Some States

Forget shopping locally or on other popular retail websites that charge tax. You can save a lot of money when buying though us since we do not charge tax in some states.


6) 100% Low Price Guarantee

We strive to ensure that we offer the absolute best prices online. Rest assured that you are receiving the best online price when you shop with us.

If you find a better price online before or after you order from us (for up to one week), we will match or beat the competitor's price.

Although rare, we may refuse to offer a price match in which we incur a loss.


7) Easy Interest-Free Financing

Finance your purchase in minutes! See our available financing options below:

PayPal Pay in 4: Choose PayPal at checkout then select Pay Later before selecting Pay in 4. Get a decision in seconds and make your first payment to complete the purchase. Make the remaining 3 payments - one every two weeks, in the app or online.

ShopPay Installments: 'Buy now, pay later’ with Shop Pay Installments with limits up to $17,500. Have the flexibility to split your purchases into 4 equal payments with 0% interest, no fees, and no impact to your credit score. Select Shop Pay Installments at checkout.

Sezzle: Buy what you want today and pay for it over four installments, interest-free. Look for the Sezzle button at checkout. Get approved up to $15,000LEARN MORE.

Contain: We’re working with Contain Inc to help our growers find financing and insurance. Contain Inc is an alternate finance group dedicated to indoor growers, so they already have information on our equipment and know the indoor agriculture industry well. They work with growers working in greenhouses, warehouses and containers and fund clients from new startup farms through to multi-generational ones. They have also worked with a leading regional insurance broker to create indoor ag-specific insurance. Drop them a line at and tell them you want to work with LED Grow Lights Depot.


8) Route Package Protection

Adding Route Package Protection to your order at checkout means that your order is protected against being lost, damaged, or stolen. In the unfortunate instance that you experience one of these inconveniences, you can report an issue with Route and they will work with you to make sure you get the resolution you prefer. LEARN MORE.


9) We are Authorized Dealers offering a Manufacturer's Warranty

You will buy confidently from us since only sell new, official products (no used items or clones). All warranties are new are 100% honored through the respective manufacturer.


10) Safe, Secure, Discrete Transactions

We accept major credit cards and debit cards, PayPal, Google Pay, Apple Pay, Venmo, Sezzle, ShopPay, bank transfers, and money orders. All card payments are processed through our encrypted SSL security processing system. Your identity is always protected.


11) Hassle-Free Returns

And just in case your purchase was not up to your standards, we offer return shipping if you are not 100% satisfied for any reason. See our FULL RETURN POLICY for full details.

Happy grows!

Customer Reviews

Based on 11 reviews
Keith S.
You can't go wrong with this .

I recommend this to every led grower I come across! It does the same thing my growers choice master light controller does but much much more and half the price . Plus it's from the convenience of my phone rather than mounting it to a wall and having to get up and manually switch things and it's universal to more than just growers choice. I'm currently using on my new 8 bar mammoths mint white series . Which btw I love my ROI's but these put them to shame . So 2 thumbs up for telos growcast and 2 thumbs up for the new mint series with emerald green spectrum mammoths . 👍👍. These right here .

Josh B.

So I have been running the unit for about 3 weeks now and it's performing great only complaint I have is sometimes it takes a while to pair with the app even when in very close proximity like less than 5 feet but other than that the scheduling is easy to use the sunrise sunset featur works for my lights so overall I'm happy

Kris B.
Would be cool if i got the right adapter.

Needed a mammoth light adapter for this timer, requested one but still haven't recieved it, so i still have no idea if it works.

Good controller

I had a hell of a time getting this set up, took multiple attempts and resets. I addressed the issues with the company and they were not aware of the issues and immediately addressed it. Had to get the separate cable for the mammoth light which too and extra week to arrive

Pete T.
Telos growcast9

Good product, it linked with my gavita led light and now I have full control

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