These T5HO grow light fixtures are 4 feet long
with the capacity for 2 high-efficiency T5 lamps. These industrial grade
fixtures include a Philips Advance electronic ballast, die formed steel housing
and riveted construction. The white aluminum reflector focuses the light
downward, adding to its efficiency. T5 fluorescent bulbs are a cost-effective
lighting source, as they can last as long as 20,000 hours. Their low mercury
content makes them more ecologically friendly than other light sources.