50A 12V/24V Solar Charge Controller [EU] (USB output: 5V/3A, Discharge stop: 21.4V, Float charge: 27.4V, Voltage: DC 12V/24V, Self-consume: <10mA, Buck charge: 28.8V, Current: 10A/20A/30A/40A, Model: PWM, Output voltage: 12V/24V Automatically distinguish voltage, Working temperature: -35℃~60℃, Rated working current: ≤20A, Discharge reconnect: 25.2V, Max solar input: <50V). Check coupons or create price alert down below. Let’s see what best price is ATM.
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in Europe 
. I’m afraid that there’s no working coupon in Banggood. This is new product in my database, so I don’t know if this price is good.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/i1u
Old coupons (from the oldest to the newest): BG42df5e, BG589b2e, BGET10
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – 50A 12V/24V Solar Charge Controller ($17.54)
Price history and price alert
It’s a new item in our database, so I can’t create price history chart. We have saved this price in database: $15.79.
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).