Advantage: 1. Vacuum welding, high efficiency rectification, good stability, safe and reliable, small loss, small size, 2. good heat dissipation with heat sink. 3. Outdoor waterproof, Combiner Box Color: As Shown Material: plastic Products details : Insulation material: PPO Rated voltage: TUV 1000 DC/ UL 2000V DC Test voltage: 6KV(50Hz,1Min) Contact material: Copper, tin plated Contact resistance: Less than 0.5 m ohm Degree of protection : IP67 Pollution Degree: 2 Protection class : Class II Flame calss: UL94-V0 Plug Force: less than 50N Withdrawal force: more than 50N Ambient temperature range: -40 ~ + 90 Diode: 55A Pin dimention: 4.0mm Package Contents: 1 x Anti-reverse diode module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.