The term “Tri” (derived from Triple), stands for three great features that Tri Proof LED fixtures offer. Namely, they are:
Water and moisture resistant,Dustproof,Shockproof
This simply means that these lighting fixtures cannot be damaged by water and/or vapor, dust or shock from falls or flying projectiles. This is why LED Tri-Proof fixtures are considered one of the strongest lamps; ideal for environments with extreme conditions.