With promo code "15USAFF", this Eco-Worthy bifacial portable solar panel costs $79 at AliExpress, down from $277. The back side only adds power when light reflects onto it, so extra output depends on the surface it sits over. Get free shipping from a U.S. warehouse. This deal ends November 18.

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At $100 off, this EF Ecoflow 160W portable solar panel is within $10 of its Amazon all-time low of $239 and well below its 90-day average of $337. The panel weighs 12 lbs. and folds flat for transport, with an adjustable kickstand for angling toward the sun. A carry bag and charging cable are included. Shipping is free. Buy Now at Amazon

EcoFlow 220W solar panel is $150 off its regular price of $549. Its bifacial design pulls in sunlight from both sides, and it carries an IP68 rating for water and dust resistance, features not always found on panels in this power range. At 15.4 lb. and foldable, it remains easy to pack for camping or RV trips. Buy Now at Amazon

Good for topping off a car battery, RV, or small off-grid setup without wiring in a full power system, and at $50 it's $10 off the $60 list price. Buy Now at Walmart

Campers and RV owners who need off-grid power will get the most use out of this foldable 100W panel, since it packs down for easy storage but still delivers full charging capacity when unfolded. It's $14 off the $79 list price at Walmart. Buy Now at Walmart

Camping trips, RVs, and power outages are where this earns its keep, letting you recharge devices or a power station without an outlet nearby. It's $20.80 off the $89.99 list price at Walmart. Buy Now at Walmart

These brackets let you angle two solar panels for better sun exposure instead of mounting them flat, which matters if you're setting up a roof or ground array and want to maximize output. The price is $21 below the $200 list, about 11% off. Buy Now at Amazon

Update: The price has changed to $79.99 since this was originally published.

Camping trips, RV setups, and backup power for small electronics all benefit from a foldable panel you can pack flat and set up in minutes without a permanent install. At $76.49, that's only $3.50 off the $79.99 list price, so this is more about convenience than a steep discount. Buy Now at Amazon

Rooftop and off-grid setups both benefit from the N-type cells here, which typically hold up better in low light and high heat than older panel designs, and you're looking at $45 off the list price. Buy Now at Amazon

Campers or RV owners who need to keep devices and batteries charged off-grid will get the most use out of this foldable panel, and at $119 it's $21 below the $140 list price. Buy Now at Amazon

Suits anyone setting up an off-grid system or expanding solar capacity for an RV or shed, since N-type cells typically hold efficiency better over time than older panel types. The 2-pack runs $125.99 right now, $30 off the $155.99 list price. Buy Now at Amazon

Four 400W N-Type panels with 16BB cell technology give you enough output for a small off-grid setup, shed, or RV system without piecing together panels from different batches, and this 4-pack runs $50 (about 17%) below the usual $290. Buy Now at Amazon

Setting up an off-grid cabin or topping off an RV battery bank gets easier with a 100W panel like this, and at $59.28 you're paying about $10 less than the $69.74 list price. Buy Now at Amazon

Worth a look for off-grid setups, cabins, or RV owners who need a decent amount of wattage without piecing together panels from different brands, since you get four matched monocrystalline panels in one purchase. Buy Now at Amazon