ChilLED Growcraft 40in LED lightbar (B-GRADE)

Retail Price: $135.00
You save $50.01
5.00 out of 5
9 customer reviews
(9 customer reviews)


Processed in 5-10 Business Days

Innovative Rugged LED Light Bar System – 3030 series T-slots on 3 sides for maximum DIY flexibility

Slim Profile Passive Cooled Design – Only 1.18in thick

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

High Power Range – 15 to 160 Watts per 40in Light Bar

Made in the USA – Finest quality materials and workmanship

Out of stock

SKU: GC-LLB-40B Category:


Assembled LED light Bar – Use to add more light bars to your Growcraft DIY light.

These are B-Grade LED light bars. They have varying cosmetic imperfections that may include, discoloration, dents, left over residue. These boards function and operate normally. The imperfections are cosmetic only.

Water Protection: Currently, the Growcraft has no protective coating against direct moisture exposure. If moisture accumulates near the LEDs damage may occur. Make sure to point any sprays downward and away from the LEDs.

Use of VOC (Volatile Organic Compounds): DO NOT USE VOCs, like burning sulfur, near any Growcraft. This can damage the LEDs beyond repair and is NOT covered by our warranty.

Parts included in assembly:

1 x Growcraft 40in Heatsink
1 x Growcraft 40in LED Board
4 x M3-6mm Plastite Screws (Installed)

Note: Only 4 center PCB screws are installed. Ends holes on both sides of bar are left without screws, those holes are used to install the PCB Cover after Light Bar is secured into U Frame Structure.


Metric: 1016mm x 100mm x 30mm
Imperial: 40in x 3.94in x 1.18in

Growcraft 40in LED Board Test Results

Test Current Voltage Wattage Total PPF PPF Efficacy Lumens Luminous Efficacy CRI CCT
350mA 41.95 Vf 14.9 W 48.59 3.26 μmol/J 3007 Lumens 201.60 (lm/W) 93.80 3347
700mA 42.63 Vf 30.1 W 95.99 3.19 μmol/J 5917 Lumens 196.80 (lm/W) 93.80 3347
1050mA 43.2 Vf 45.7 W 142.63 3.12 μmol/J 8773 Lumens 192.18 (lm/W) 93.70 3350
1400mA 43.68 Vf 61.4 W 188.04 3.06 μmol/J 11542 Lumens 187.89 (lm/W) 93.70 3354
2100mA 44.49 Vf 93.7 W 274.59 2.93 μmol/J 16807 Lumens 179.30 (lm/W) 93.50 3360
2500mA 44.92 Vf 112.5 W 322.74 2.87 μmol/J 19723 Lumens 175.29 (lm/W) 93.40 3365
2800mA 45.21 Vf 126.8 W 357.44 2.82 μmol/J 21819 Lumens 172.02 (lm/W) 93.30 3369
3125mA 45.49 Vf 142.3 W 393.87 2.77 μmol/J 24021 Lumens 168.76 (lm/W) 93.30 3374
3500mA 45.85 Vf 160.5 W 435.42 2.71 μmol/J 26526 Lumens 165.24 (lm/W) 93.20 3378


Growcraft Yield Max Spectrum

Growcraft DIY Assembly Instructions Video



Additional information

Weight 4.9 lbs
Dimensions 41 × 4.1 × 1.5 in

9 reviews for ChilLED Growcraft 40in LED lightbar (B-GRADE)

  1. 5 out of 5
    9 customer reviews

    Olivia Pollock (verified owner)

    as everyone else has said no imperfections to be found unless you are reallyyyyyy looking hard all over. great price for a great product !

  2. 5 out of 5
    9 customer reviews

    Marcus Stockton (verified owner)

    Well I spent a good 20 minutes staring at these and I dont know who does their quality control but they got better eyes than mine. Spotless bars. As a home cultivator I am once again blown away at how great this company is. Upgraded two x5 600 watts to x6’s. Outstanding!

  3. 5 out of 5
    9 customer reviews

    Aaron Badiali (verified owner)

    I am a huge fan of these B-grade light bars. I started with a regular light bar and was really happy with my purchase. After waiting for these to come back in stock I was finally able to get my hands on 3 of these. As the other comments say, there are no noticeable dents and the lightbars are all completely functional. The B-grade lightbars are a great way to save a couple of bucks and still get the high quality ChilLED offers.

    Another great part about ChilLED is the customer support. I wanted to try out a Veg bar but didn’t see the option on the light. After reaching out to customer support, they were able to get me squared away without a problem!

    Again, really happy with these B-grade light bars and the ChilLED customer support. Highly recommend going with the B-grade if you’re DIYing and want to save a couple of bucks on some very high quality lights!

    • Gabrielle

      Thanks, Aaron for the wonderful review! We are always here for our growers and glad we were able to help you get what you were looking for 🙂

  4. 5 out of 5
    9 customer reviews

    Christopher Jordan (verified owner)

    I got two of the b grade , and their great No noticeable marks or defects. Fast friendly service. Thinking about getting more even though I don’t really need them lol.

    • Gabrielle

      Christopher, thank you for the wonderful review 🙂 Happy growing!

  5. 5 out of 5
    9 customer reviews

    mark (verified owner)

    Up grading my diy cob set up brought 2 x b grade lightbars good quality Fast shipping 6 days New Zealand,
    Answered all questions regarding HLG drivers etc
    friendy and honest ,will b buying more ,cheers mark

  6. 5 out of 5
    9 customer reviews

    Doc (verified owner)

    I ordered 2 of these “B” grade Growcrafts. As expected, they are flawless. You have to really knit-pick to find the scuff. Nice light output paired with 4 chilled logic pucks. Worth every $.

  7. 5 out of 5
    9 customer reviews

    Ronnie Black

    Would it be more cost effective to upgrade my current light or just buy another? My light if upgraded would need two new bars to make it wider to make room for more lighting boards. Then there’s the cost of the light boards and then the driver.I’m running an X3-500 whats after that?

  8. 5 out of 5
    9 customer reviews

    George Myburg (verified owner)

    7 Days from USA to South Africa
    Amazing quality, no idea where my defect is as my bars looks spotless.

  9. 5 out of 5
    9 customer reviews


    When it showed up I had a hard time finding and dings or marks that would make this “ b” grade. When I did find the mark it was small and I would have easily assumed it happened during shipping.

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