Fix your 3500k today!

Cause today led-tech.de put the Oslon SSL 120 660nm red leds in day trade again. (Thanks @Malocan for pointing them out last time). Back by popular demand. Only 3 hours left, will drop to €2.70-2.80 a few times more today:
https://www.led-tech.de/de/daytrade.html

Add these for easy assembly: https://www.led-tech.de/de/High-Power-LEDs-Osram/Osram-Oslon-SSL/Wärmeleitklebepad-für-16mm-Star-LT-2418_206_207.html

Help cure the globally spreading 3500k disease, donate to proper super efficient at the source and the target horticulture leds today!

and don´t forget to buy some this f(r)osters
https://www.led-tech.de/en/High-Power-LEDs-Seoul/SSC-VIOSYS/SSC-VIOSYS-UV-CUN66A1B-on-Star-PCB-LT-2575_121_240.html

How much GPW increase will these give me over 3500k cobs?

guod said:

and don´t forget to buy some this f(r)osters
https://www.led-tech.de/en/High-Power-LEDs-Seoul/SSC-VIOSYS/SSC-VIOSYS-UV-CUN66A1B-on-Star-PCB-LT-2575_121_240.html

Click to expand...

Self proclaimed "plant whisperer" doesn't know that HPS barely emits any UV..............but let him continue with his 3500k bashing, it's always humorous reading imo

@Sativied, have you wrote down your thoughts on spectrum somewhere?
If not, would you mind doing so?

PSUAGRO. said:

plant whisperer

Click to expand...

like this?

Sativied said:

Help cure the globally spreading 3500k disease

Click to expand...

what fucking disease ?

3500K grows at least as well if not better than your lighting (an old fashioned straight HPS).

I'm in favor of supplementing cobs with deep red, but the plants will grow just fine without it.

There ain't no fucking disease.