Mercenary grade·Spectral Stash Collection
Professor Photon
Professor Photon is a Mercenary-grade cosmetic from Spectral Stash Collection. There is no lower-grade trade-up route to this item within its collection.
Professor Photon prices
A buy order is what a buyer offers you; a sell listing is what you pay. These are saved observations, not reserved stock. Unusual variants are excluded; a quality option does not guarantee market availability.
backpack.tf: Requesting a price check…
Steam: Requesting a price check…
| Market | Highest eligible buy order | Lowest eligible sell listing |
|---|---|---|
| backpack.tfClean bot quotes · keys / refined | Loading saved quote… | Loading saved quote… |
| Steam MarketUSD · Steam Wallet | —Loading saved quote… | —Loading saved quote… |
Saved data reloads every 30 seconds. Each quote’s timestamp shows its actual check time. Queued checks are not completed checks, and expired prices remain reference-only.
How to trade up to Professor Photon
Spectral Stash Collection has no recorded items at the grade immediately below Mercenary. There is no within-collection trade-up recipe to Professor Photon; adding items from a different collection cannot create that missing input tier. See the collection guide for its contents and source.
What can Professor Photon trade up into?
Ten compatible Mercenary items from Spectral Stash Collection produce one of 7 Commando outputs, each with 14.29% probability. You can use ten copies of Professor Photon or mix items from its tier, keeping all ten Non-Strange.
El Gigante's Gunbelt
Commando · 14.29%
Heat Shield
Commando · 14.29%
Industrial Insurgent
Commando · 14.29%
Ripped Runts
Commando · 14.29%
Sleight of Hand
Commando · 14.29%
Calculator links open research recipes, not purchases. Availability, compatible variants, fees and price changes affect results; positive expected value does not guarantee profit.