Though this refrigerator had only been developed recently, not a single detail had been handled carelessly.
To reduce operating costs, Wang Chen had specially enhanced its insulation. The casing was packed with compressed cotton wadding; once the built-in Frost Magic Tool was activated, it could maintain a frozen state for a long time.
Wang Chen had tested it. One Spirit Stone could normally keep it running for nearly a day and a half.
Saying one day was merely conservative.
Unfortunately, with the technology he currently possessed, it was difficult to achieve the automatic variable-frequency function of a "compressor."
Otherwise, a single Spirit Stone would last two or three days without any problem!
With Wang Chen's personal guarantee, the visitor finally made up his mind and asked, "Can the price be any lower?"
"Sir, the price really can't be lowered."
This time, Su Ziling answered again. "But if you can bring two fellow cultivators over and purchase as a group of three, we'll give each person consumables worth fifty Spirit Stones."
What consumables? Spirit Stones!
To put it bluntly, it was a ten-percent discount for a group purchase of three.
Hearing this, the man was even more tempted. He turned and asked the neighbors who had gathered to watch, "Anyone want to form a group with me to buy this refrigerator?"
Su Ziling hurriedly added, "The group purchase bonus is only available today. There will be no free consumables tomorrow."
"Also, if you form a group now, we'll throw in ice pop ingredients worth ten Spirit Stones!"
What was there left to hesitate over?
Someone immediately stepped forward from the side. "Me! I'll join your group!"
And it was not just one person.
The group of three was swiftly formed, and they happily bought three refrigerators.
With them as an example,