UL and TUV certified  solar junction box  O-ring Seal
1. UL and TUV tested.

2. mainly used in solar junction box.
3. excellent waterproofing and sealing.

The solar junction box O-seal that has UL and TUV certified has no significant change in performance in the outdoor exposure 20-25 years with free status. It has excellent heat resistance, cold resistance, weather resistance, dielectric properties, and has excellent physical inertia, non-toxic, tasteless, non-corrosive.