$38.99 – Remote Control Size: Φ66.5x 34mm, Working Temperature: -10°C ~ 40°C, Lamp Body Size: Φ23 X 448mm, Rated Power: 5W (80×0.2W/LED module), Color Temperature: 2700-6500K, Product Model: MJGJD01YL, Rated Input: 5V 1A.
Xiaomi Laptop Screen Light Type-C is for $38.99 (in Banggood). Basically copy coupon, view price history or create e-mail price alert. Do you want to know what the best price is?
Latest coupon and price update (UTC):
Banggood ($38.99)
Banggood warehouse is located in China. But wait a sec… Is it a good price? My database says that it’s pretty good price, coz average is $40.13. Nice, I’ve got 2 active coupon codes for you!
Link: Banggood product page
Price without coupon: $49.99
1. ($38.99): BG2a8b99
2. ($44.99): BG61ee25
coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGXMLA, 60f088, bgshOOp10, bGhOnEy10, BGMIJLM, BGXMPD16, BgcLuBofErtA10, 3cc8a9, BGCN0642, BGAFF10OFF, BGPHDL1, c38a0b, BGCuponation10, BGXMDL01, daaf9a, BGXMDL02, BGPL960, 7ac4a1, 3923d0, 13f142, BG811b3e, BG10OFFAFF, BGwhielabel, BG004f9d, BGeb9c47, BGTESTYMIL, BGMiBar07, BGe1ea90, BGc78b8d, BGLIG12, BG3fae0a, BG10OFFAFF1, 6GSGIT, BG2589f4, BG06511c, BG00c906, BGAlerabat1, BGAFF9693, BG48d23a, BG5c058c, BGc54d17, BGea3871, BG910739, Cuponation9, BGOct22LED, BG49beab, BGLEDNOV2022, BG0bffa4, TTBLACK5, BG589b2e, BGSaleFeb8, BGe260c2, BG9ceaf1, BGca9ad1, BG9d2349, BGc3a183, BGa60f23, BG33d542, BGaaa4b6, BG6859b0, BGRSEPTXM1U
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Aliexpress
I could not find it 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 Xiaomi Laptop Screen Light Type-C is here. The lowest price was: $37.99.
Price records source(s): Gearbest, 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)).