Just check coupons out (with price alert and history). Do you want to know what the best price is?
Life time: 20000 hours, Fitting: E27 base, Shell material: ABS + PC, Wireless control: App control, RGBW, Max power: 7W, Voltage: AC 100 – 240V
Aliexpress
I could not find it on Aliexpress. Click here to search by yourself.
Here are coupons that you can use.
Latest price update (UTC time):
Price history and price alert
Here is price history (for all/most countries) for Utorch LE7 E27 RGBW LED Bulb.
Price records source(s): Gearbest
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)).