Federal Taxes: Charitable Donations Deductability Nuance

I've been told a charitable donation deduction value should be an amount the receiving charitable organization would reasonably expected to resell an item for. E.g., A lamp worth $50 should only have a deductible value of say, $7...etc. But what about items (new and used) donated to colleges, universities, schools? If items are new in value, can a full value of the item be deducted since such an organization would use the items rather than resell them?

Federal Taxes: Charitable Donations Deductability Nuance