This videos may be of interest:

  • Full spectrum grow light comparison test - COB vs Red Blue LED vs CFL
  • The biggest LED COB panel yet! Voltage/current tests.
  • Even BIGGER ""200W"" COB LED panel tests.
  • Massive ebay COB LED Grow light test
  • Full spectrum grow light comparison test - COB vs Red Blue LED vs CFL
  • The biggest LED COB panel yet! Voltage/current tests.
  • Even BIGGER ""200W"" COB LED panel tests.
  • Massive ebay COB LED Grow light test
Here some other interesting products:
Here some other interesting products: