600W HPS lifespan suitable for third grow?

Hi,

i have this HPS tube with both spectrums - used two whole grows ( ~ 7 months - 2664 hours)

SHP-TS GroLux 600W - 2050K
215.000 Phyto-lm


Do you think I can still use it for last 3rd grow without worrying it will heavily affect my harvest?

Go for it, just carry a spare, or buy a new bulb, and keep the old bulb as the spare, apply a little Vaseline on the thread for easy extraction later, insert, tighten and wipe down the glass with iso alcohol to remove greasy fingerprints, tricks I learnt in Hollywood lighting dept ....lol!

They have around a 24000 hour lifespan but do deteriate in output. Mine have been in for 18 months, with too many harvests to count, and still pulling almost a pound a week. I've had new ones for months but have been waiting to see.

I keep mine going until they blow. About once a year. At $75 a piece , I can't afford to waste em.

If you use cheap bulbs like I power or Apollo I would replace every cycle... Matter fact I wonder if it's worth it to buy cheaper bulbs, and change every cycle instead of getting one horti bulb and changing once a year... Think the fresh cheap bulbs would out perform a old good bulb?