$7.59 – 500pcs 5mm LED Diode Kit (Banggood, Aliexpress: 500pcs 5MM LED Diode Kit Mixed Color Red Green Yellow Blue White + BOX (the best price with coupon)).
500pcs 5mm LED Diode Kit is for $7.59 (in Banggood). You can create price alert here, copy coupons and view price history. You probably want to know what is the best price?
Latest coupon and price update (UTC):
Banggood ($7.59)
Banggood warehouse is located in China. Is it a reasonable price for this item? I have never seen better price than the current one in CouponsFromChina database, so it’s the best! I found coupon for you. Check this out.
Link: Banggood product page
Price without coupon: $7.99
1. ($7.59): BGACCES5
coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop.
This is the best price ever noted in my database!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/feV
Old coupons (from the oldest to the newest): BG589b2e
(I don’t think these’re gonna work, but you can try ’em out anyway)
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.
Price history and price alert
Price history (for all/most countries) for 500pcs 5mm LED Diode Kit is here. The lowest price was: $7.59.
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)).