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Serenus Lumen A Head Full of Hot Air
This price has not changed since 2026-09-11 12:09 UTC. It reflects the last observed trade rather than current market value, and this page is excluded from our sitemap for that reason.
Community price on backpack.tf: 68.0 keys, last changed 2025-10-04 (1.0y ago). The live quote above, 70.3 keys, is 3% higher and last moved 1mo ago. They are different measures: the quote is what traders and bots are asking and bidding on the classifieds right now, and it moves for thousands of items every day; the community price is a suggestion accepted by vote, which changes only when someone argues it should. A quote well away from the vote is usually a price that is about to be re-argued. Community prices from backpack.tf, read under an hour ago.
Price history
Interactive chart. Press the left and right arrow keys to move along the series, Home or End to jump to either end, Escape to clear.
The key axis converts at today's rate. Prices are recorded in metal, so a line that is flat in keys followed the key rate rather than standing still.
| Observed (UTC) | Sell | Buy |
|---|---|---|
| 25 SEP 2025 · 03:29 UTC | 51.3 keys | 41.9 keys |
| 30 SEP 2025 · 21:26 UTC | 51.2 keys | 41.9 keys |
| 9 OCT 2025 · 09:07 UTC | 66.5 keys | 59.9 keys |
| 25 OCT 2025 · 17:18 UTC | 60.3 keys | 54.2 keys |
| 10 NOV 2025 · 01:18 UTC | 61.8 keys | 55.6 keys |
| 22 JUN 2026 · 17:13 UTC | 41.1 keys | 35.8 keys |
| 29 JUN 2026 · 01:14 UTC | 47.1 keys | 40.9 keys |
| 5 JUL 2026 · 23:12 UTC | 45.5 keys | 39.6 keys |
| 19 JUL 2026 · 22:44 UTC | 52.1 keys | 45.3 keys |
| 29 JUL 2026 · 00:45 UTC | 54.5 keys | 47.4 keys |
| 3 AUG 2026 · 02:24 UTC | 56.7 keys | 49.4 keys |
| 10 AUG 2026 · 13:10 UTC | 58.4 keys | 50.9 keys |
| 21 AUG 2026 · 06:08 UTC | 40.5 keys | 35.2 keys |
| 23 AUG 2026 · 16:11 UTC | 57.5 keys | 50.0 keys |
| 24 AUG 2026 · 14:09 UTC | 57.2 keys | 49.8 keys |
| 25 AUG 2026 · 16:09 UTC | 57.5 keys | 50.0 keys |
| 26 AUG 2026 · 16:09 UTC | 57.6 keys | 50.0 keys |
| 27 AUG 2026 · 06:09 UTC | 57.6 keys | 50.1 keys |
| 29 AUG 2026 · 00:09 UTC | 57.9 keys | 50.3 keys |
| 29 AUG 2026 · 02:09 UTC | 57.9 keys | 50.3 keys |
| 29 AUG 2026 · 22:09 UTC | 58.5 keys | 50.8 keys |
| 30 AUG 2026 · 14:10 UTC | 63.0 keys | 54.8 keys |
| 31 AUG 2026 · 14:09 UTC | 66.4 keys | 57.7 keys |
| 1 SEP 2026 · 02:09 UTC | 66.4 keys | 57.7 keys |
| 1 SEP 2026 · 16:09 UTC | 67.5 keys | 58.7 keys |
| 2 SEP 2026 · 06:08 UTC | 67.1 keys | 58.4 keys |
| 2 SEP 2026 · 18:09 UTC | 65.7 keys | 57.1 keys |
| 4 SEP 2026 · 00:08 UTC | 69.1 keys | 60.1 keys |
| 4 SEP 2026 · 16:09 UTC | 68.4 keys | 59.5 keys |
| 6 SEP 2026 · 14:09 UTC | 68.6 keys | 59.7 keys |
| 6 SEP 2026 · 18:09 UTC | 66.2 keys | 57.6 keys |
| 6 SEP 2026 · 22:09 UTC | 67.4 keys | 58.6 keys |
| 8 SEP 2026 · 04:09 UTC | 64.0 keys | 55.7 keys |
| 8 SEP 2026 · 22:09 UTC | 66.3 keys | 57.6 keys |
| 9 SEP 2026 · 10:08 UTC | 65.5 keys | 57.0 keys |
| 9 SEP 2026 · 22:08 UTC | 68.2 keys | 59.3 keys |
| 10 SEP 2026 · 10:10 UTC | 70.4 keys | 61.2 keys |
| 4 OCT 2026 · 09:09 UTC | 72.8 keys | 63.3 keys |
| 4 OCT 2026 · 11:08 UTC | 72.7 keys | 63.2 keys |
| 10 OCT 2026 · 23:09 UTC | 8.69 keys | 7.56 keys |
Price history in numbers
48 readings since 25 Sep 2025Over the last 30 days the Serenus Lumen A Head Full of Hot Air's sell price ranged from 8.69 keys to 72.8 keys and is down 88.1% after 2 moves. Over a year it ranged from 8.69 keys to 72.8 keys (down 86.3%). Today's 8.69 keys sits at the bottom of its range: the lowest we have recorded is 8.69 keys (10 Oct 2026) and the highest 72.8 keys (4 Oct 2026). The price has moved 46 times since we began recording it — about once every 8 days.
| Window | Low | High | Change | Moves | Readings |
|---|---|---|---|---|---|
| 30 days | 8.69 keys | 72.8 keys | −88.1% | 2 | 3 |
| 90 days | 8.69 keys | 72.8 keys | −83.3% | 36 | 38 |
| a year | 8.69 keys | 72.8 keys | −86.3% | 43 | 45 |
Details
| SKU | 30662;5;u173 |
|---|---|
| Last price change | 2026-09-11 12:09 UTC |
| Key rate when recorded | 62.44 ref |
Same effect, other items
the effect across the catalogue| Item | Value | Updated |
|---|---|---|
| 1,100 keys | 11mo ago | |
| 256 keys | 15d ago | |
| 185 keys | 2mo ago | |
| 178 keys | 14d ago | |
| 182 keys | 12d ago | |
| 168 keys | 18d ago | |
| 159 keys | 13d ago | |
| 150 keys | 12d ago | |
| 119 keys | 2mo ago | |
| 100 keys | 2mo ago |
Other effects on the A Head Full of Hot Air
same item, different effect| Item | Value | Updated |
|---|---|---|
| 313 keys | 1mo ago | |
| 108 keys | 4mo ago | |
| 103 keys | 12d ago | |
| 94.1 keys | 12d ago | |
| 90.2 keys | 13d ago | |
| 88.3 keys | 12d ago | |
| 89.7 keys | 12d ago | |
| 77.9 keys | 10mo ago | |
| 78.8 keys | 13d ago | |
| 78.2 keys | 12d ago |
Priced similarly
across the catalogue| Item | Value | Updated |
|---|---|---|
| 69.0 keys | 15d ago | |
| 71.1 keys | 12d ago | |
| 68.2 keys | 3mo ago | |
| 69.7 keys | 12d ago | |
 Collector's Axtinguisher | 69.8 keys | 11d ago |
| 68.3 keys | 17d ago | |
| 69.2 keys | 13d ago | |
| 68.6 keys | 14d ago |