A51 W90s grow

Light output seems down considerably on 5 year old W90 and Optic 120. Both run Veros and they push them hard, the Optic can get plenty warm especially.

yeah they do get hot ... I have not had to buy lights for many years so I am a bit out of the loop, if it is not broken do not fix it they say

hillbill said:

Light output seems down considerably on 5 year old W90 and Optic 120. Both run Veros and they push them hard, the Optic can get plenty warm especially.

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Was this measured or observed visually?

Less on a cheap Hydrofarm FC meter of which I am aware of limitations and also a seemingly noticeable visual drop at the edges of their assigned areas. The W90 has served in veg for 18 to 20 hours. According to a Migrow video, a drop maybe should be expected.

I have an A51 XGS 190, SGS 160 and a R/W 75 with discrete diodes that seem close to new in output. They do run far cooler than the COBs above.

It does not matter to me how much cooler and better the latest models are, the whole point of buying LEDs back then was the longevity, my setup is what it is, the airflow and everything is designed with the lights I bought many years ago and everything works. Sure I could spend money and upgrade my setup but I really enjoy waiting to see just how long the COBs will last, so far none have died, only one driver over the years and it was still under warranty, otherwise my whole garden is paid for, do not care to upgrade. I bought a COB setup from timbergrowlights in 2017, and another COB setup from rapidled early 2018. I am not buying any lights until them COBs start to die. COB LEDs have been the most reliable grow lights for me since I have started growing.