Better ROI than avocado toast: $17.09 (Banggood). Color Box Size 106*50*45mm, Battery 1800mah, Net weight 95.2g, Dimensions 79*41*24mm, Certification CE/ROHS/PSE/MSDS, Charging time 3h, Mode Low-Medium-High-Strobe-SOS, Parts List Light + Fixing Ring + Bracket + Charging Cable, Beads XPG*2, Color Black, Color box accessories 131g, Waterproof level IPX6 (rainproof).
Updated: 24-08-2025
Banggood
Warehouse in China.
Link: ASTROLUX BC2 800lm Bike Light
Regular price: $17.99
$17.09 with coupon: BGCYCLE5
Additional Banggood coupons:
1. First page
2. Second page
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
Here is price history (for all/most countries) for ASTROLUX BC2 800lm Bike Light. The lowest price was: $9.49.
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)).