• Full spectrum from 350nm to 800nm, Suitable for indoor plant growth at all stages
  • High PAR 550umol/s make plants grow stronger in the greenhouse
  • High Lumen Maintenance 90% at 8,000 hours; longer life saves the cost of changing bulbs
  • High Efficiency 117lm/w output help you save a lot of electricity costs
  • Standard PGZX18 cap base can be used in any 315W CMH fixture

2 Pack CMH 315W 3100K Full Spectrum Grow Light Bulb, CMH 315 Grow Bulb