Materials:
- 10x 2.4m ( 8ft ) 2x4s
- 1x OSB sheet 240x120cm ( 8x4 ft )
- 12x two led light fixtures for 120cm (4ft) LEDs, 24 cool daylight 18W led lights
- 3x double light switches - one per shelf controlling every other light fixture
- Some screws, wiring, wagos
- Bonus: tapo p110 or other smart plug to turn the lights on/off on schedule
Total cost under $200
Is the height of the lights adjustable or is that what you're using the bins for to raise the plants instead?
In my setup I have my lights on chains that I can raise or lower. It's honestly a pain. I end up just slipping a couple 2x4 pieces under the trays rather than bothering to move the lights.
Fixed height. Being able to adjust light distance per tray is better when you have different height plants on a single shelf. It's also less work when building it.