Adapter Input: AC 100~240V 50/60Hz, Operating Temperature: -5~40℃, Lamp Input: DC 19V-0.5A, Color Temperature: 3000K~6000K, Material: Plastic+Metal, Maximum Power: 10W, LED Life: 30000h, Model: BW-LT28, Luminous Flux: 600lm.
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 code price check (UTC time):
Banggood
Banggood warehouse is located in China. There is one great coupon!
Link: Banggood product page
1. ($82.11): BGd0b05d
you should apply the coupon in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGBWFL28, bGhOnEy10, BGTT10, 0f0ebb, BGHUD92148, BGBW152, BGHU768, BGUBBWLT28, BGdragonBoat, bgshOOp10, BGBW10L, BGLIGHT0920, 8a9402, BgoFErTaSchInA10, BGELIG0920, 1b8f7731, BgcLuBofErtA10, BGVIBWLT28, 10%ForNewBW, BGCuponation10, 10%ForBGBW, BG10OFFAFF, BGwhielabel, BGLIG12, BG10OFFAFF1, BGb4eb64
(these coupons are old, so probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – BlitzWolf BW-LT28 10W Floor Flexible Lamp [EU] ($-3)
Price history and price alert
Price history (for all/most countries) for BlitzWolf BW-LT28 10W Floor Flexible Lamp is here. The lowest price was: $43.99.
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)).