| EFOY Pro 800 / 800 Duo / 2400 / 2400 Duo | 17.16¹ |
| EFOY Pro 12000 Duo | 21.06 (manufactured after cw 02 2018) |
| EFOY Pro 12000 Duo | 19.13 (manufactured before cw 02 2018) |
| EFOY Pro 600 / 1200 / 1600 | 9.27 (manufactured before cw 12 2011) |
| EFOY Pro 600 / 1600 / 2200 / 2200 XT | 11.13 (manufactured after cw 12 2011) |
If your firmware version is older, please get in touch with your EFOY Pro sales partner.
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¹EFOY Fuel Cells with serial number xxxxxx-xxxx- 52801 or higher have firmware 17.17 installed upon delivery. For older EFOY Fuel Cells, firmware 17.16 is the latest version.
