Growcraft X3 – 500 Watt DIY LED Grow Light Kit

Retail Price: $900.00
You save 19%
5.00 out of 5
9 customer reviews
(9 customer reviews)

From: $729.00


Commercial Grower? Contact us for a volume discount quote.

DIY Friendly Modular Design – If you can dream it, you can build it!

U Frame Structure Platform – Provides ready made framework – no need for drilling or tapping

Innovative Rugged LED Light Bar System – Large footprint for even canopy coverage

Slim Profile Passive Cooled Design – Only 1.375in thick & no moving parts

Growcraft Yield Max Spectrum – 3rd Gen 2020 technology – maximum results

Linear Power Control – 25W – 500W dimmable range

Light Engine Efficacy – 3.26 μmole/J – 2.73 μmole/J

Full System Efficacy – 3.08 μmole/J – 2.58 μmole/J

Made In The USA – Finest quality materials and workmanship

View Assembly Instructions

Growcraft 40in LED Board - 160W × 3

Growcraft PCB End Cover - 2 Pack × 3

Upgrade your lights with some colorful PCB covers to allow your plants to grow in style

Choose from Deep Sky Blue, Blooming Magenta, Leaf Green, Onyx Black & Omni Chrome

note* Limit swapping PCB Covers to avoid stripping threads.

Current order lead time is 10 business days * 

Due to our very high order volume, your estimated order lead time is 10 business days.

SKU: GC-KIT-500-X3 Category:

Compare Our 500 Watt DIY Light Kit

Choose Your

DIY Light Kit

Coverage Area

Power Draw

Number of Light Bars

Light Spread Rating

Dimming Range

System Efficacy

Total PPF

Market Price

Price / light bar

Price / watt

Price / µmole

Value vs Performance


DIY Light Kit

3 x 5 standard | 4 x 6 max

500 Watts

3  Light Bars

Good Light Spread


2.58 µmole/J

1225 µmoles


$243 / bar

$1.46 / watt

$0.60 / µmole

Best Performance in 3 x 5 


Passive Cooling Linear Bar Design

Thin Profile – Only 1.375in Tall

Rugged T Slot Bar Design

Oversized surface area for maximum heat dissipation

Remote Power Driver Location

Lower your heat load by removing power driver outside grow area

Growcraft Yield Max Flowering | Full Cycle Spectrum


Growcraft Yield Max Vegetative Spectrum


Assembly Instructions Video


PAR Intensity Maps

6 in Hanging Height

3’x5′ Canopy Area – 6 inch Hanging Height

Average PPFD – 1,185 µmol/(m2s)

12 in Hanging Height

3’x5′ Canopy Area – 12 inch Hanging Height

Average PPFD – 943 µmol/(m2s)

18 in Hanging Height

3’x5′ Canopy Area – 18 inch Hanging Height

Average PPFD – 815 µmol/(m2s)

24 in Hanging Height

3’x5′ Canopy Area – 24 inch Hanging Height

Average PPFD – 746 µmol/(m2s)

30 in Hanging Height

3’x5′ Canopy Area – 30 inch Hanging Height

Average PPFD – 681 µmol/(m2s)

36 in Hanging Height

3’x5′ Canopy Area – 36 inch Hanging Height

Average PPFD – 603 µmol/(m2s)

Growcraft X3 – 500 Watt DIY LED Grow Light Kit Includes:

2 x Growcraft DIY U-Frame – 2×4
2 x Growcraft DIY U-Frame Cover – 2×4
1 x Growcraft Power Distribution PCB – 2×4
3 x Growcraft 40in Heatsink
3 x Growcraft 40in LED Board
1 x M3 – 6mm Plastite PCB Screw – 5 pack
1 x M3 – 8mm Plastite PCB Screw – 25 pack
1 x M3 – 5mm Countersunk Torx Screw – 25 pack
1 x M4 – 14mm Torx Screw – 25 pack
3 x Growcraft PCB End Cover 2 Pack – ChilLED WHITE
1 x Growcraft Strain Relief Cable Gland – Black
1 x 20 AWG Red & Black Solid Core Wire Pair – 6ft
1 x Growcraft 48Vdc LED Power Cable – 7ft
1 x 120VAC USA Power Cord – 6.5ft
1 x MEAN WELL HLG-480H-48B LED Driver
2 x WAGO 221-412 Wire Splicing Connector (5 Pack)
1 x Dimmer Pot
1 x Growcraft DIY U-Frame Hole Plug
4 x Rope Ratchets

Optional Items:

3 x Growcraft PCB End Cover 2 Pack – ChilLED BLUE
3 x Growcraft PCB End Cover 2 Pack – ChilLED RED

Input Power Draw: 500W
Input Voltage Range: 90-305 VAC

120 VAC Current Draw: 4.2 Amps
208 VAC Current Draw: 2.4 Amps
240 VAC Current Draw: 2.1 Amps
277 VAC Current Draw: 1.8 Amps

Power Driver: Mean Well HLG-480H-48B
AC Power Cord Length: 6.5 ft
DC Extension Cord Length: 7 ft
Dimming Range: 5-100%

Light Engine Efficacy: 3.26 μmole/J – 2.73 μmole/J
Power Driver Efficiency: 94.5% @ 230 VAC
Full System Efficacy: 3.08 μmole/J – 2.58 μmole/J

Light Bar LED Information:
Samsung 3000K White LEDs – 140 per Light Bar
Samsung 5000K White LEDs – 140 per Light Bar
660nm Deep Red LEDs – 15 per Light  Bar

Warranty: 1 Year DIY Kits Warranty Included

Operating Temperature Range: 41°F – 95°F | 5°C – 35°C
Operating Humidity Range: 10 – 90% Non-Condensing
Generated Heat Load: 1,706 BTU/Hour

Minimum Head Space Above Fixture: 10 in
Recommended Hanging Height:
18-30 in
Recommended Grow Room Ambient Air Temperature: 85°F | 29.5°C
Coverage Area: 3 x 5 ft
Start Slow – Growcraft lights have VERY high light output and unless your plants are already acclimated to high light intensity, it is best to start slow with the light hanging high and possibly also dimmed. Then monitor plant reaction over a few days and slowly adjust as needed.

Fixture Dimensions: 42.5 in x 19.5 in x 1.375 in
Fixture Weight: 17 Lbs

Complete Step By Step DIY Kit Assembly Instructions

Weight & Dimensions

Weight 28 lbs
Dimensions 43.45 × 8.95 × 7.7 in

Growcraft 40in LED Board - 160W

Weight .6 lbs
Dimensions .3 × 1.85 × 40.1 in
Choose LED Spectrum Type

Flowering Optimized/Full Cycle Spectrum, Vegetative Cycle Optimized Spectrum

Growcraft PCB End Cover - 2 Pack

Weight .025 lbs
Dimensions .5 × 1.5 × 2.5 in
Select Color

Deep Sky Blue, Blooming Magenta, Leaf Green, Onyx Black, Omni Chrome

9 reviews for Growcraft X3 – 500 Watt DIY LED Grow Light Kit

  1. 5 out of 5
    9 customer reviews

    Max (verified owner)

    Overall quality and ease of build on the X3 500w kit make this great for someone just getting into LEDs/ indoor crops. After owning one and seeing the performance I had to get another X3 500w kit. Packaging and shipping are amazing haven’t had any issues.

  2. 5 out of 5
    9 customer reviews

    Ronnie Black (verified owner)

    2nd Review of the light..I covered customer service in my first. The light arrived very well packaged and in good shape. Everything was packaged neatly, and organized. It took about 1 hour to assemble the light and it was surprisingly easier than I thought it would be. The quality is without question, its not a light piece of equipment but its not too heavy either. 20-25 pounds. This thing is bright!!!!! I’ve honestly never seen anything like it. You really need sunglasses if you crank it wide open, or you’ll be seeing spots for a few days. I didn’t choose this manufacturer on a whim. I researched all the big names and from my research this is the best light, hands down. If quality, customer service, warranties, are important to you, then this is who you want to buy from..No questions about it

  3. 5 out of 5
    9 customer reviews

    Mokotoko (verified owner)

    I like the light so was easy to assemble. It’s very bright! The plants are enjoying it as well. The dimmer makes it easy to dial in the perfect amount of light depending on the stage of growth. Being able to get replacement parts and upgrades is the reason I went with Chilled. I just ordered my second light! Cheers!

  4. 5 out of 5
    9 customer reviews

    Chris (verified owner)

    I bought two of them for a 5×5 tent and don’t need to turn them up all the way. Talk about bright! They worked so well I bought eight more for a bigger space I’m currently fitting out. I like the X3 500w instead of the X6 1000w so I can space them out a little bit more but all of the models are of the same high quality. The construction of the light is beautiful and putting it together is a piece of cake and well worth the reduced price! The spectrum I use is for flowering but I’ve been using them in veg cycle no problems at all! Hands down the best lights I’ve ever used.

  5. 5 out of 5
    9 customer reviews

    Sam (verified owner)

    This light was easy to put together and install in my tent all on my own. The quality is fantastic, every part has a durable quality to it (except for maybe the dimmer switch, but that’s a non issue as it works perfectly). Highly recommend this diy light even if you’re not familiar with electronics like me. The instructions are a little vague at times so it helped to have an online source handy in addition to the provided instructions. But it’s super bright, the heat output is very manageable, and the energy consumption is pretty modest.

  6. 5 out of 5
    9 customer reviews

    Ryan Marks (verified owner)

    These lights are an incredible value. DIY is completely doable, even for those who don’t consider themselves handy. Customer service is incredible, real people who speak English from the USA. Oh yeah, these lights are bright as fizzuck. Better product than both KIND and Black Dog without question — I own all 3. Many future orders from me to come.

  7. 5 out of 5
    9 customer reviews

    Ronnie Black

    I do not have my light yet. This review is about the customer service I received while figuring out which light to get. Never have I had such friendly, FAST, help. I’ve shopped all the big names and spoke to them personally, some were friendly and helpful and a few didn’t care if I bought a light or not…

    But when I emailed them, I was given a ton of information and asked to call to discuss things further. I spoke to a guy named Austin and his help was incredible. He explained everything so that I understood it, even gave me ideas on how to upgrade. You name it and he covered it…

    I’m going with this company because of the quality of the lights, but more importantly, the customer service and how they go out of their way to ensure the customer is taken care of… If that means anything to you, these are your guys…

  8. 5 out of 5
    9 customer reviews

    Malik (verified owner)

    Received my first light, shipping to my country was fast, very well packaged, easy to follow instructions, the light is 100% functional, I installed it and tested it, I got higher PPF readings than what’s mentioned lol… Waiting for my other equipment to arrive before I can run the light

  9. 5 out of 5
    9 customer reviews

    Joshua Tune (verified owner)

    This light is fantastic!! It stays cool to the touch and makes my plants extra happy. The dimm swtich is perfect for plants that don’t quite require full light yet. I have bought 2 lights from Chilled and i plant to buy another! Amazing company with Amazing products!

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