This is the one I've been using for the last year. My setup relies on a 12v power supply. 12 volt programmable timer
This is the cycle timer i use. Timer Relay,Icstation DC 12V 10A Programmable Digital Time Cycle Delay Switch Module 1500W ON-Off Control 0-999 Second Min Hour LED Display https://www.amazon.com/dp/B06X3YSXY9/ref=cm_sw_r_cp_api_glc_fabc_H0u9FbNFSED6M
The timer came from Amazon: https://www.amazon.com/gp/product/B06X3YSXY9/ref=ppx_yo_dt_b_asin_title_o06_s00?ie=UTF8&psc=1
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And the LED lights are from eBay: https://www.ebay.com/itm/Wholesale16ft-5050-UV-UltraViolet-Purple-Fish-Black-Light-300-LED-Strip-Adapter/382421183704?ssPageName=STRK%3AMEBIDX%3AIT&var=651186476737&_trksid=p2057872.m2749.l2649
You want the NON waterproof LEDs.
The 12V power supply came with the lights, but I would think any 12V power supply would do.
I didn't know that about cukes. Thank you so much. This is a pretty sunny area, but I have an idea for how to remedy that.
As for the solar setup, it is homebrewed. The panels and controller are from Harbor Freight and the pump is a bayite BYT-7A006 solar pump from Amazon.
This is the timer that I wired in: https://www.amazon.com/gp/product/B06X3YSXY9/
Most of the system is just pieced together from things I had laying around.