ATEM POWER 120W Portable Solar Panel Kit- Foldable Monocrystalline Folding Solar Panel Kit Camper RV Solar Power Charger with 20A MPPT Charger Controller 5V USB Output for 12V Batterires/Power Station

I bought it for a trip out west and when I set it up the first time it didn't work, NO output. Even tried to work it with another controller and it didn't work, because although it said "compatible with a Jackery" It wasn't. And now the return period is up!! VERY DISAPPOINTED

Je n'ai pas encore eu le temps de tester beaucoup, mais pour l'instant je suis très satisfait. Il recharge très bien ma batterie AGM 12V.La qualité semble bonne par rapport au prix, et le panneau inclus un contrôleur MPPT, ce qui fait une grande différence par rapport à un contrôleur PWM.Il est plus lourd que ce que j'avais pensé, mais semble assez résistant.

So, this is an initial review, I have only had this panel for about a week or so. I was originally looking at the 200W panel, but went for the 120 instead. I have been using a 60W panel for a while, is great but sometimes want a bit more output. My 60W generally gets about 10W in most conditions. This 120 gets 70+!! This isn’t in nearly direct Sun either. Great value for the cost, folds really small, I am very happy. More than enough output for my needs with my camper.

Doesn't deliver 120W. The most I got out of it in full sun was 94W. However, I don't think it was just this product: I've noticed that all solar panels promise more than they can deliver (including the big ones on my roof at home). They get away with this by using weasel words like "Nominal power" or "Max power".The cables that connect to the battery are too short. Had to prop the charge controller up on a box so the cables would connect. I think they are about 18" long and would be better if they were more like 36"Other than that, these panels worked flawlessly. I did end up changing the controller (which says in some places in the manual that it's PWM and in other places, MPPT and other reviewers have said will overcharge your battery) with a Renogy MPPT controller which kept my 100AH battery charged and ready for the evening hours.I like the way this folds up small and is easy to position on the roof of our class-B RV (or on the ground, depending on where the shade/sun is). It is heavy enough that a pretty strong wind did not move them off the roof of the RV!Happy with the purchase for my intended use. I thought I would need more like 200W, but the 90W I'm getting from this is more than sufficient.

After the initial open circuit testing I was impressed by these panels, but after a year and field testing I have found these panels to be mediocre at best, even in bright sun and angled properly I usually only pull about 60-80 watts. I understand that I'll never get 120w in even the best conditions, but would expect to at least get 100w. The design of these panels makes it hard to set on angles as well, they are floppy and awkward. Over all for the price they are Okay, but they aren't the best.