The HPS color spectrum mimics the sun during late summer/fall harvest. Wiring 2 together would be nice, just be prepared for a little more heat.
Sorry to hear about your neck and back, I have some LMT experience so I have ran into allot of those kind of problems.
Adieu
BlueBear Reviewed by BlueBear on . 175w metal halide for entire grow? I am a first time grower (new card holder) and i have a 175 watt metal halide pendant lamp (actually 2 of them, but one has a bad ballast) from a previous saltwater reef tank that is now a fish only tank. My question is can I grow 3 or 4 plants with this one 175 pendant and can I use it throughout the entire cycle or do I really need a sodium vapor lamp? This will be the first of many, many questions I'm sure. Thanks! herbaltivo Rating: 5