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Web31 Mar 2024 · Spider Farmer SF4000 commercial LED grow light is equipped with Samsung LM301B chips and adds additional red and blue light, enabling yields up to 2.5g/w. www. spider-farmer .com 420baby Nov … WebSpider Farmer SF4000 LED Grow Light New 2024 version with dimmer knob included (56) $529.95 $499 or 4 interest-free payments of $132.49 with ⓘ Add to cart Bulk/wholesale … Web2 Jul 2024 · SPIDER FARMER SF4000 LED Grow Light 5x5 ft Coverage with Samsung LM301B Diodes & MeanWell Driver Dimmable 450W Commercial Full Spectrum Grow … simplisafe window decals