Waterproof Junction Box Enclosure 40mm X 20mm X 11mm Small Plastic Electrical Box For Wiring, Surface Mount, Black, Easy Install, No Tools Required, 12 Pack

Compact waterproof junction box 40x20x11 mm, 12 pack
✔️ Total size 40x20x11 mm; internal 35x15x7 mm (1.6x0.78x0.27 in)

This waterproof project junction box is a small plastic enclosure designed for wiring and electronics. It's surface-mounted, waterproof sealed, and suited for outdoor or damp environments where protection and compact size matter.

✅ Exterior: Plastic; waterproof sealed; corrosion resistant
✅ External size: 40 x 20 x 11 mm / 1.6 x 0.78 x 0.43 in; internal cavity: 35 x 15 x 7 mm / 1.4 x 0.6 x 0.27 in
✅ Surface-mounted with holes; no tools or screws required
✅ Color: Black; Pack: 12 junction boxes
✅ Good for electronic projects, power supplies, student builds, amplifiers

💡 What is a waterproof junction box used for in electronics projects and outdoor wiring? It protects connections from moisture and dust in damp environments.

- handy for protecting exposed wiring joints in damp or outdoor spots - keeps terminals clean and corrosion-free in compact projects - fits small internal cavities like 35x15x7 mm while external size is 40x20x11 mm - easy surface-mount install with predrilled holes