Vikocell 1Pcs Photovoltaic Solar PanelJunction Box Waterproof IP65 for Solar Panel 100W-180W

I had a solar panel on the RV that went bad. After some research, I figured I would try replacing the diode box. This box worked like a charm. I had to heat and scrape out the silicone that filled the old box (I may have gotten a little crazy with the heat). Once the terminals were exposed, I used my solder iron to remove the panel leads from the old box. The connection leads, I cut out with a pair of cutters and then dressed that wire up by stripping it back for new wire and tinning the ends. From there I used heat and a scraper to remove the old box. I cleaned the surface with alcohol pads and put strips of industrial double sided tape on the back of the new box. The connection lead crimps are difficult to access, but I used a pair of needle nosed pliers to shape them and then used a bolt as an anvil on the back and a hammer and straight blade screwdriver to "crimp" them in place. I did fill the voids with solder for a better connection. Once the wires were terminated, I mounted the box with the tape making sure that the box was centered between the panel leads. Using a straight blade screwdriver, I opened the jaws on the panel termination points and used another smaller screwdriver to push the leads into the termination points. There are four termination points on the diode box, I used the two outside points which yielded the correct voltage as measured with a meter. All in all, this was a great repair item for a 200 watt 42 volt solar panel.

Much better built than the one it replaced.

Excellent product well durable well madeBought this for replacement Trina panel excellent replacement worked perfect

Most junction boxes that I have bought come with 3 diodes for 300w panels, this has two sets or 6 diodes. The box is a bit narrow, the tab wires on the outside are squeezed up against the sides of the box for my panels. It's easy to clamp in the tab wires - one you figure out how, there are no instructions - you insert a screwdriver behind the triangular folded looking section before the diode and press towards the tab and this will open a space into which you can insert the tab, make sure to push the tab down and that's it!I had a hard time trying to crimp the wires for the positive and negative outputs because of the lack of space underneath. To be safe I also soldered the wire so that even if the crimp wasn't tight enough, hopefully some contact was still there. I tested the panel and the voltage was in the expected range for when it's not connected.

The junction box was a nice upgrade from the Tyco box that came with my panels. I have since purchased more.

Great worked on my 167 watt sharp solar panel after original junction box shorted out

looks good