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Optic LED GMax 150 Dimmable LED Grow Light (LH351H)

By Optic LED
List Price: $299.00
Price: 179.00
You Save: $120.00 (41%)
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Product Description

   *Ships within 1-2 business days
GMAX 150

GMAX 150 features the Latest in Horticulture LED Technology from Samsung with their new LH351H 3.1 umols/J Deep Red LEDs and the LM301H full spectrum White light LEDs. Gmax 150 was engineered to the most stringent standards of GreenHouse LED grow Lights today, no moving parts and industry best quality components givce you a fixture with durability, next generation efficiency and Robust Spectrum and PAR from strong plant growth and yield. 


Coverage Footprint:


1 Unit                                               

2' x 2' area (.6m x .6m)                      

Max 2' x 3' (.6m x .9m)             

2 Units                                        

3' x 3' area (.9m x .9m)           

Veg (1 unit)

2' x 3' area @ 18"

2' x 4' area @ 24" 

Hanging Height : 

Flower: 8"-18"    

Pro Tips: Wk1-3 @18"  -  Wk4-6 @14"  - Wk7-10 @8"-9" 

Veg: 24" - 30"    (@ 100% Power)

Seedling: 24" (Dimmed Down @ 50%)

 Dimmers : 1

Dimmability: 0%-25%-50%-75%-100%

Dimmer Comes Standard + 2 Controller Ports 


Gmax 150 Components:

LEDs: 312

White LEDs: 

- 300 Top Bin Samsung LM301H 3500K White LEDs  - Horticulture Series

Bloom Enhancers:

- NEW! 12 Samsung LH351H Deep Reds LEDs - Horticulture Series

Optics : 

Samsung LM301H White LEDs: 120 Degree Primary Lens

LH351H 660nm Deep Reds: 120 Degree Wide Beam Primary Lens 

Driver: Meanwell HBG Series Driver



Thermal management: Passive Cooling from an Overbuilt HeatSink

Spectrum: Full Spectrum White Light + 660nm Deep RED 


8" Hanging Height PPFD: 

GMAX 150 Specifications:

Grams Per Watt: up to 2.4

Yield: Up to 360 grams / 12.85 oz / .8 lbs

HID/HPS Equivalent: 300w HPS

Kelvin: 3500K DayLight White 

IP Rating: IP65 Waterproof - Green House Rated

PPFD @8" : 

Master Controller: Compatible with Touch Screen Master Controller (2 ports)

PAR Efficacy: 2.8 umols/J

Actual Power Draw: 150 Watts

Amps: 1.5 Amps at 120v 

Lifetime: 100,000 Hours+  

Warranty: 10 Years full warranty - Lifetime warranty on Meanwell Driver 

Shipping: Free Shipping to 60+ countries 

Light Fixtures: GMAX 150 

Cables: 6 Foot attached power cord 

Plug: USA, CANADA, EURO, Commercial, Industrial, etc.

(We automatically ship the correct cord for your country)

Dimming: 0-100% Dimming Capabilities (Dimmer Included)

(Works with external touchscreen Master Controller

Dimensions: 22" x 3.5" x 4.5" 

Fixture Weight: 6lbs

Shipping Weight: 8lbs

Hanger: Comes with adjustable rope ratchets.

Recommended for: Closet Grow, Cabinet Grow & Grow Tents. & Green Houses



The industries only 10 Year Warranty!




Customer Reviews

Based on 1 review
Larry king
Grow light.

Works well thanks.

Order Confirmation 

As soon as you place your order, you will receive an order confirmation e-mail. This means that we have received your order in our system and pre-authorized your credit card for the purchase.

As soon as we receive your order, we automatically reach out to our suppliers to confirm that it is in stock and available for immediate shipment.

If your item is on backorder or unavailable, we will void the pre-authorization and reach out to you via e-mail.

If your item(s) are available for immediate shipment (within 5 business days), we will process the charges and submit the order for shipment.

Order Shipment

If your order is stock and we process the charges to your credit card, it will ship within five business days from the date of your order.

The one exception is our grow cabinets. These are made to order right out of California and can take 2-3 weeks before they ship.

Just hang tight, they're worth the wait :) 

We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address your provide when checking out. If you do not receive tracking information from us within six business days of your order, feel free to follow up with us at

Your privacy is important to us, so we offer discreet shipping on all orders. We ship in plain, unmarked packages via Fedex, UPS, and USPS. For larger shipments such as our grow cabinets we ship via freight and will provide you with a Bill of Landing and tracking information. 


Please inspect the packaging of your item(s) when they arrive, if you notice any damage you should make note of it when signing for delivery. If your item(s) do arrived damaged, please send photos to and we will process an insurance claim on your behalf.

Cancellations & Refunds

All orders cancelled after 48 hours are subject to a $20 administration fee, whether or not your order has shipped. If your order has shipped, you (the buyer) will also be responsible for actual return shipping charges. Refunds will only be issued to the original credit card that you use when placing your order. 


If you are unhappy with your order for any reason we can help you with a free return within 30 days of receiving the item. You will need the items original packaging to make a return, so please keep it!

Just send an email to and we will take care of you. 

Shopping online is great but it can be hard to know if you’re getting the best deal.

From the the moment you click "Add to Cart", to the day your order arrives at your door, we want your experience with us to be completely stress-free.

If you’re worried about finding a better deal online, now you can relax.


Here's our promise:

If you find another store online that is offering a better price any time within six months of making your purchase, we will cover the difference. 

That’s right, we will send the money straight back to your pocket. If you buy one of our products for $100 and find it online for $90 just send an email to info@allgreenhydroponics with a link to the better priced product and we will take care of it from there.

You’ll get your $10 back right away. 

We offer this price match guarantee because we want you to be able to shop with confidence and not have to worry about if you’re getting the best deal online. With us, you always are. 

There are some requirements for us to price match:

  • We will only price match after you’ve placed an order for the product to be matched.
  • This is not valid for products on sale or offered with other promotions.
  • The product will only be price matched against other online retailers that do not have physical store locations.
  • The competitors website must show the price matched product as in stock.
  • Discount and auction sites will not be price matched (i.e. ebay, groupon, overstock).
  • Only Authorized Retailers of the product will be price matched.
  • Price matching is valid for the item price plus shipping costs, sales tax is not included. 

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