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Here are coupons that you can use.
Other warehouses/versions
This item is available in 3 another warehouse/versions!
1. Europe – BlitzWolf BW-SS5 1 Gang 10A 2300W Smart Switch [EU] (-3 USD)
2. Europe – BlitzWolf BW-SS5 2 Gang 10A 2300W Smart Switch [EU] (7.99 USD)
3. China – BlitzWolf BW-SS5 2 Gang 10A 2300W Smart Switch (-3 USD)
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (11.69 USD): BGELIG0920
Coupon (11.99 USD): 13f142
Coupon (11.99 USD): BGSAMRTH
(CouponsFromChina.com tip: apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
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): BGBWSS5, BGSAMH, bGhOnEy10, BGSM15, BGBWUU1, BGBWSS5ES, bgshOOp10, BGBW152, BgcLuBofErtA10, 10%ForNewBW, BG1BWSS5CZ, BGHONEY2110, BGSHOM15, BGcfead8, BGe4717e, BG2367da, BG7904ff, BGGE5947, BG5285f6, BGD11007, BG4d2428, BGfd071f, BGB5007, BGad2cf4, BGcb848f, BGa9a075, BG8e86cf, BG36bc47, BGfb6eca, tRaDetRaCKeR, BGc6924b, 8wEbgaInS5, pROMo8cuPoN, BGHU2206, BGJUNEGSG9, BG8ReviTrage, Cuponation9, BG8OFFCOUPON, TTBLACK5, BG8904b9, BGe831b8
(these coupons are old, so probably won’t work)
Other warehouses/versions
This item is available in 3 another warehouse/versions!
1. Europe – BlitzWolf BW-SS5 1 Gang 10A 2300W Smart Switch [EU] (-3 USD)
2. Europe – BlitzWolf BW-SS5 2 Gang 10A 2300W Smart Switch [EU] (7.99 USD)
3. China – BlitzWolf BW-SS5 2 Gang 10A 2300W Smart Switch (-3 USD)
Price history and price alert
Price history (for all/most countries) for BlitzWolf BW-SS5 1 Gang 10A 2300W Smart Switch is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).