Hello Tide Roller.
I bought two 100 watt Renogy panels (size 21" x 49") from Amazon... paid $360 for the pair, including delivery
The quality seems the same as my 75 watt panel BUT... okay, now I do have a currently active thread about the panel and the junction box location. Basically, the junction box is (in my albeit amateur view) incorrectly placed.
Your panel, on the bottom:
6" from corner there are two screw holes
16" from corner two more screw holes
(then the center part)
Repeat from the other end.
The "problem" is that the junction box is going to be covered by the braces (cross-pieces to add stability -- not that they "need same" but this is going to be a permanent mounting and I'm expecting the two panels to stay put in gale force and stronger winds.
So, at the forward end I'll use the 6" holes for my teak
brace and thru bolt into my pilothouse. At the aft end I'll use the 16" holes for the brace and then, at the 6" holes I'll add feet, thru bolting them into the pilothouse. Frankly, I think the placement of the junction box could have been right at the end and then I wouldn't have this issue -- but it's a minor one.
The wire appears fine and is 2 foot long. It has those fancy clips at the end -- I've opted to whack 'em off and will use 10-gauge butt connectors (Ancor brand of course) rather than pay $$ for the fancy removable type.
Oh, and under the teak
braces (and feet) I'll add 1" starboard... I like having plenty of air circulation.
Good luck. And would I buy these again? Well, yes -- and if these two don't keep me in sufficient power for everything, I will indeed buy more.
One thing I liked is that the panels come in this foam box and the top has made a wonderful template..... Both panels came in one larger cardboard box and were shipped via UPS. I ordered on a Monday or Tuesday and they arrived in FL on Saturday.
Adding: The entire junction box won't be covered -- only about 1/3rd of it... still, I didn't want any covering so...