Price history, coupons and price alert are available on this page. You probably want to know what is the best price?
Lamp Base: E27, Input Voltage: AC90-250V 50/60Hz, Wattage: 6W, Stand-by (light off) power: 0.5W max, Output lumen: 600lm, Beam angle: 120°, Color temperature: 2800K-6500K & RGB full color, Dimmable: yes (via eWeLink/Amazon Echo/Google Home), Wireless standard: WiFi 802.11b/g/n, Security mechanism: WPA-PSK/WPA2-PSK
Aliexpress
There’re some similar (or not) items on Aliexpress
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. Too bad there’s no coupon right now in Banggood.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): bls919
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Price history (for all/most countries) for Sonoff B1 E27 6W RGB+CCT Smart Bulb 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)).