According to my DB the lowest price is $89.23 for LONG WEI LW-K3010D 110V/220V 0-10A 0-30V Power Supply (in Banggood). Go down and check coupons out. Remember to check price history if it is available. Let’s see what best price is ATM.
Efficiency: >85%, Output Voltage Range: 0~30V, Brand: LONG WEI, Input Voltage: AC 200-240 V / 50~60Hz, Voltage Display Accuracy: ±0.5%, Operating Ambient: -10℃ ~ 60℃ / 30%RH~ 90% RH, Dimension: approx.20*7*15.1cm, Output Current Range: 0~10A, Input Current: 0.6A(220V), Current Display Accuracy: ±0.5%
Latest price update (UTC time):
Banggood ($89.23)
Banggood warehouse is located in China. Is it a reasonable price for this item? Maybe there’re no more promotions for this item, because current price is higher than average (which is equal $44.11) You can get coupon down below.
Link: Banggood product page
Price without coupon: $96.99
1. ($89.23): BGALL8
you should apply the coupon in your cart 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): BGDCP2, BGPS15, BGdb3b, BGESP2, TISPrime01, Tools1, BG11VIPD, BGLONGWEI2, BG00000, BG2020NS, BGOMG23, BG22SP, BG2D2, BG2HOT, bGhOnEy10, BG3ZLP, BGEES11, BGeLt15, BgcLuBofErtA10, BGAFF10OFF, BGCuponation10, 13f142, BGHONEY2110, BG026d07, ADMITAD2212, 2022ACTIESNL, Terence, Tabby20, BGCAPITALOS8, BGCOUPERT8, BGBFDAY8, BGNEWYEAR8, BGSPRING8OFF, BGHONEYSP, BGESJY8
(probably won’t work, but you can try them out)
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Price history (for all/most countries) for LONG WEI LW-K3010D 110V/220V 0-10A 0-30V Power Supply is here.
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)).