Metal
Halide Bulbs
We recommend replacing metal halide bulbs at least once
every year of growing time. After a year of growing time your
metal halide bulbs are only putting out half as much light as
new bulbs will. Your eye will not notice it, but you will see
a difference in how your plants grow after replacing your old
bulb. These are standard metal halide bulbs. If you are interested
in enhanced spectrum and increased lumen output from your metal
halide system, check out our metal halide MS
bulbs.
