Open Deals Packs at Aliexpress app home and look for "Solar Led", you will be proposed the same Solar led with different prices, is just one unit every time even if picture show several sensor solar lamps. Scroll down and look for best price.

Eternal Promotion link:
https://s.click.aliexpress.com/e/_DkQAUBf

Buy minimum 3 products and if you buy 6 you get -2€ discount, if you buy 10 you get -3€ discount.

100 leds solar lamp for only 1.59€ at promo page:
https://s.click.aliexpress.com/e/_DDFR40v

This Solar Lamp had three modes: Intense light with Motion Sensor, lower intensity light with motion sensor that will switch on intense light for around 15 seconds, lower light is always on till battery gets exhausted, intensity will also decrease as battery has lower charge in every light option, and third light option is intense light with sensor switched off. If you read seller descriptions it always say that battery last for 8 hours. It won't, at least with lamps i bought. Open lamp box and use a battery tester to know real 18650 battery capacity, i think batteries had something like 600mAh. If you want lamp to stay on all night change battery for 3000mAh, anyway if sensor or intense light are not switched on many times then battery will last more time. I use second option mode wich is lower intense light and i cover sensor so i have low light more hours.