Product Dimensions：192(L)x196(W)x240(H)mm, Solar Panel Power Supply and Automatic Rotation, View Window to Observe Curing Process, High Quality 405nm UV Lights, Three LED Stripes for More Effectcient UV Light Curing, Input Voltage：110V/220V 50/60Hz, Rated Power：15W.
Basically copy coupon, view price history or create e-mail price alert. You probably want to know what is the best price?
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 and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($84.63): tRaDetRaCKeR
2. ($84.63): 8wEbgaInS5
3. ($84.63): pROMo8cuPoN
just apply this code in your 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): BG1efeb0, MVC8SPRING, 8BGwbg2204
(these coupons are old, so probably won’t work)
Price history and price alert
Here is price history (for all/most countries) for Creality 3D SL1 Resin Curing Machine 405nm. The lowest price was: $84.63.
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)).