Ideal direct Burial water resistant landscape Lighting fixtures cord nuts pack of 20 are the very best answer for connecting low voltage wires underground.
Sold in a pack of 20
To be used when connecting wires underground
Meant for use with WAC landscape Lighting fixtures
Gel full of silicone and gasket for UL approved out of doors burial applications
To be used with 12-16 AWG wires. Standards: UL1838 & IP65 rated for wet locations