The 2.40 x 1.41 x 0.98 inch (61 x 36 x 25 mm) size is large enough for an esp32 dev board. I don't quite know how I'm going to mount the board, though.
Zulkit 5Pcs Black ABS Plastic Project Boxes - Ideal For Electrical And Power Junctions (80 X 50 X 21 Mm)
10 Review
โก๏ธ RVGUARD 50 Amp Weatherproof Outdoor Electrical Power Outlet Box - Lockable RV/EV NEMA 14-50R Receptacle Panel, 125/250V, ETL Listed
9 Review
Zulkit Junction Box ABS Plastic Waterproof IP65 Electrical Boxes Hinged Shell Outdoor Universal Project Enclosure With Mounting Plate And Wall Brackets Grey 11.8X7.9X6.3 Inch(300X200X160Mm)
10 Review
Junction Box, Zulkit Project Box IP65 Waterproof Dustproof ABS Plastic Electrical Boxes Electronic Enclosure Black 4.5 X 3.5 X 2.2 Inch(115 X 90 X 55 Mm)(Pack Of 1)
12 Review
๐ก Hydrofarm Quantum QT400 Dimmable Ballast for 400W Grow Lights
5 Review
Robertson Worldwide ISL432T8HEMV AH 3P20160 120-277V 50-60Hz High Power Factor 4 F32T8 Linear Lamp Fluorescent eBallast
6 Review
โก๏ธ Sunpark LC-12014T (1) FC12T9 32W Circline (1) 2D 38W (1) FC16T9 40W Circline (1) FC9T9 30W Circline Lamp Compact Electronic Fluorescent Ballast with Circline Lamp Plug 120V
7 Review
๐ก High-Quality Advance ICN-4P32-SC Electronic Fluorescent Ballast: Ideal for 4 Lamps, 32W T8, 120/277V
3 Review