When would you replace a Philips 315w bulb? It's been going 12 hours/day 7 days a week. Has about 8400 hours. Just wondering if it needs replaced.
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According to this merchant, bulb is at 90% at 8,000 hours. I’m not sure how much spectrum change that will create. You can run it a bit longer...but would consider replacing if you can afford it.
4x4 600w HID empty for summer
3x3 400w HID with Bruce Banner and Skywalker Kush
2x2 65w Quantum Board LED with 4 mother strains
running all simultaneously for a perpetual harvests.
https://forum.growweedeasy.com/forum...hash-adventure -
Nothing beats new bulbs. If it's not a huge cost issue for you, do it. I change my HPS after three veg and two flower cycles.Space: 4 x 5 x 6, Two 600w HPS, Dirt farmer since Nov 2012.
Current Grow: White Truffles (GG#4 X Peanut Butter Breath)Comment
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