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Grower's Choice 4K 500 Watt Single Ended CMH Bulb

Save $66.00 Save $66.00
Original price $185.00
Original price $185.00 - Original price $185.00
Original price $185.00
Current price $119.00
$119.00 - $119.00
Current price $119.00

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Grower’s Choice 4k-CMH Daylight lamp is the best option for hearty vegetative growth leading to a healthy bloom phase.

With a Color Rendering Index of 97 and intense full spectrum the Grower’s Choice 4k lamp provides near sunlight photon output. This leads to healthier and more robust vegetative growth.

Grower's Choice 4200K 500 Watt SE CMH Bulb Features

  • Produces more PAR per watt than standard Metal Halide
  • Richest spectrum on the market
  • CRI of 97 makes this lamp the closest solution to sunlight available
  • Promotes extremely tight internodal spacing leading to more flowering sites and a fuller canopy
  • Offers significant improvement in spectral quality over standard Metal Halide


    • Spectrum: 4200K
    • Lumens Per Watt: 95
    • Lumens At 100 Hours: 45,000
    • CRI: 97
    • Photon Flux: 970 umol/s
    • Lifespan: 15,000 hours

    See the full spec sheet here.

    Power 500 watts
    Spectrum 4200K
    Lumen@100 Hrs 45,000
    Lumens Per Watt 95
    Photon Flux 970 umol/s
    CRI 97
    Lifespan 15,000 hrs

    - Free Shipping on all orders $175+ in the continental US.*
    - Tracking Info will be provided via email within 24 hours of shipment.
    - Easy Returns within 10 days of purchase + 25% restocking fee.
    - Please see our Shipping & Returns policy for more details.

    Warranty Information
    Grower's Choice purchases include a 5 year warranty.