Fluminer L3 vs Antminer L9: which Litecoin and Dogecoin miner to choose
The Antminer L9 earns more where electricity is cheap – up to roughly 2 Kč/kWh its 16 GH/s give it a higher net profit. The Fluminer L3 is the better choice with more expensive electricity and at home: it is 15% more efficient per 1 GH/s, draws half the power (1,700 W) and runs at around 45 dB instead of 75 dB. Both machines mine Litecoin and Dogecoin simultaneously on the Scrypt algorithm. Below is a comparison of the specifications and today's revenue calculation at three electricity prices.
Summary
- Antminer L9: 16 GH/s, 3,360 W, around 0.21 J/MH, 75 dB – a machine for hosting or a server room.
- Fluminer L3: 9.5 GH/s, 1,700 W, 0.179 J/MH, around 45 dB – a machine for home mining, for example with solar panels.
- With electricity below ~2 Kč/kWh the L9 earns more; above that threshold the L3 does (as of 18 October 2026).
- The L9 breaks even up to ~2.47 Kč/kWh, the L3 up to ~2.90 Kč/kWh.
Technical specifications
| Specification | Fluminer L3 | Antminer L9 |
|---|---|---|
| Algorithm | Scrypt (LTC, DOGE) | Scrypt (LTC, DOGE) |
| Hashrate | 9.5 GH/s | 16 GH/s (15–17 GH/s versions) |
| Power | 1,700 W | 3,360 W (16 GH/s version) |
| Efficiency | 0.179 J/MH | around 0.21 J/MH |
| Noise | around 45 dB | around 75 dB |
The Fluminer L3 has been on the market since January 2026, weighs 13.8 kg and runs on 110–240 V. The Antminer L9 is sold in 15–17 GH/s versions and should be connected to a dedicated circuit.
Hashrate and consumption
The Antminer L9 has almost twice the hashrate, so it mines significantly more coins per day. The Fluminer L3, however, draws half the power and needs about 15% less energy per GH/s. It is efficiency that determines how expensive electricity a machine can “carry”.
How much they earn at different electricity prices
Today 1 GH/s on Scrypt earns 1,86 Kč in Litecoin and 10,60 Kč in Dogecoin per day, around 12.46 Kč in total. The Fluminer L3 thus mines roughly 118 Kč and uses 40.8 kWh a day; the Antminer L9 mines 199 Kč and uses 80.6 kWh.
| Electricity price | Fluminer L3 net / day | Antminer L9 net / day |
|---|---|---|
| 1.13 Kč/kWh (cheapest hosting) | ~72 Kč | ~108 Kč |
| 2.00 Kč/kWh | ~37 Kč | ~38 Kč |
| 3.00 Kč/kWh | ~−4 Kč | ~−43 Kč |
| Break-even point | 2.90 Kč/kWh | 2.47 Kč/kWh |
The calculation applies as of 18 October 2026 at today's difficulty and exchange rate. The point at which both machines earn the same lies around 2 Kč/kWh. Below it the L9 wins thanks to its hashrate; above it the L3 wins thanks to its efficiency. The current hosting price today is 1,13 Kč per kWh.
How to calculate payback
Payback is easy to calculate: machine price / net daily profit = number of days. Net profit is gross revenue minus electricity: power in kW × 24 hours × price per kWh.
Example for the Antminer L9 16 GH/s in hosting: 3.36 kW × 24 h = 80.64 kWh a day. At 1.13 Kč/kWh that is 91 Kč for electricity, so about 108 Kč remains from the gross 199 Kč. You will find the current machine price on the Antminer L9 page, and the mining investment calculator does the full calculation including difficulty trends.
Noise and cooling
- Fluminer L3 – around 45 dB, the level of an ordinary household appliance. Suitable for smaller spaces too.
- Antminer L9 – around 75 dB, the noise of industrial equipment. It belongs in a server room, a soundproofed room or hosting.
Who each machine is for
The Fluminer L3 is suitable for home mining with solar panels. Thanks to its quiet operation and lower consumption it can heat as well as mine – 1.7 kW of heat is enough for a smaller living space or garage (up to around 30 m²). It is a sensible solution for smaller miners with their own renewable energy. We compare other quiet machines in the article Quiet ASIC miner for Dogecoin and Litecoin.
The Antminer L9 is built for professional operation. Its higher hashrate and industrial noise level make it a machine for data centres with cheap electricity and good cooling. If you cannot run it at home, place it in hosting, where power, cooling and monitoring are taken care of for you. There is also a liquid-cooled L9 Hyd 2U version with 27 GH/s for data centres with a water loop.
Conclusion
- Fluminer L3: efficient and quiet, for the home and smaller spaces, for pricier electricity or your own solar power.
- Antminer L9: powerful and loud, for hosting and professional farms with electricity at around 1–2 Kč/kWh.
What next
- Litecoin and Dogecoin miners – our current range of Scrypt machines with revenue calculations.
- Dogecoin – how it is mined and why it is mined together with Litecoin.
Sources
Frequently asked questions
Which miner is better for mining Litecoin at home?
How much electricity does the Antminer L9 use per day?
At what electricity price does the L9 stop paying off?
Do the L3 and L9 mine Dogecoin and Litecoin at the same time?
How do I calculate a miner's payback period?
This text was prepared with the help of AI. Facts, figures and procedures were checked by Yegor.
