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Grower's Choice 3K-R 500 Watt Single Ended CMH Bulb

Save $56.00 Save $56.00
Original price $175.00
Original price $175.00 - Original price $175.00
Original price $175.00
Current price $119.00
$119.00 - $119.00
Current price $119.00

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The Growers Choice 3kr-CMH lamp is tailored specifically to enhance bloom production through the discharge of intensified red shift photon dispersion, which plants need to promote heavier yield.

It also provides additional UV light to facilitate terpine and resin production, as this is a plant’s natural response to protect itself from UV radiation.

Grower's Choice 3100K-R 500 Watt SE CMH Bulb Features

  • A slight increase in UV light to promote resin production
  • A taller peak in the Far-red to stimulate metabolic activity during flowering
  • Slightly higher PAR for better flower density
  • Increased intensity in red


  • Spectrum: 3100K
  • Lumens Per Watt: 95
  • Lumens At 100 Hours: 48,000
  • CRI: 90
  • Photon Flux: 860 umol/s
  • Lifespan: 15,000 hours

See the full spec sheet here.

Power 500 watts
Spectrum 3100K
Lumen@100 Hrs 48,000
Lumens Per Watt 95
Photon Flux 860 umol/s
CRI 90
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.