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Dr. Cannastein
From ~ 3+ years experience using a 432w Quantum Bad Boy hot5, the hidden cost of replacement bulbs adds up fast
With some led panels, there is separate o/o switches for veg and flower, which is a big help.
Attempting to change out 4ft bulbs over a grow is a PITA
long term i can not speak to HOT5's viability, short term and especially for reducing start up costs I wouldnt hesitate to grab them again.
In regards to spectrum i run mixed the full cycle, so i only had to buy a handful of red tubes since most HOT5's usually ship with all blue. So no need for bulb changes mid grow.
Now with all that said i am looking at LED's for my upscale since i would rather run T5's over HID. Thinking i may check out a LUSH or one of those big cali ones.