Price history, coupons and price alert are available on this page. Let’s see what best price is ATM.
Temperatur: 150°C ~ 450°C, Max. 0.2mm for welding pen, Welding Pressure: 300 – 500 g, Welding Pin Range: 5 – 6 mm, Power: 1.5 KW (Instantaneous), Supply Voltage: AC 220 V ± 20 V/110V, Time of Eight Pulses: 8 ~ 80 ms (adjustable), Welding Distance: Adjustable, Power: 50 W, Electric leakage Switch Requirement: 60 A or more than 60 A, Current: 500 A, Time of Four Pulses: 2 ~ 20 ms (adjustable), Suitable Welding Thickness: 0.03 – 0.3 mm, Time of Double Pulse: 1 ~ 10 ms (adjustable), Output Voltage: 20 V DC
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($210.78): BG37ae98
2. ($245.43): BGPTL088
3. ($259.87): BGGines
put item in your cart and apply coupon code there after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
There were country-specific coupon codes published on Couponsfromchina social channels and price alerts. Coupon price may vary by country, because there’re different VAT rates, shipping cost etc. There is a chance that some latest coupons are still working:
Old coupons (from the oldest to the newest): BGHJA189, AFfbG10, 502C6B, BGTool15, BGVDay10%off, BGMPB2020, BGAFF10OFF, BGTT10, a56573, bGhOnEy10, BGherra, BGdragonBoat, BGSP08, bgshOOp10, BG534014, BgoFErTaSchInA10, BGELIG0920, BgcLuBofErtA10, BGWELDTOOL, 7bcdf9, BGCuponation10, BGHONEY2110, BG534014A, BGTR534014, BG960cbf, BG019b41, BG8a7644, CityadsTool, BG75ab48, BGTools8
(there’s a little possibility that old coupon will work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – SUNKKO 709A Spot Welder [EU/CZ] ($-3)
Price history and price alert
Do you need price history chart (for all/most countries) for SUNKKO 709A Spot Welder? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
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)).