Does anyone know the meaning or differences between these bulbs?
B booms 55 8 May 15, 2009 #3 the difference is in the spectrum color they give off, either more red/flowering or blue/veging depending on which is needed. just buy a normal bulb and a back up for half the price, mostly waste of $$$
the difference is in the spectrum color they give off, either more red/flowering or blue/veging depending on which is needed. just buy a normal bulb and a back up for half the price, mostly waste of $$$