Bitmain Antminer L11 Pro (21Gh) vs FluMiner L2
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer L11 Pro (21Gh) | Specification | FluMiner L2 |
|---|---|---|
| 21.0 GH/s | Hashrate | 1.0 GH/s |
| 3,612 W | Power Consumption | 230 W |
| 172,000.0 J/TH | Efficiency | 230,000.0 J/TH |
| 75 dB | Noise Level | 40 dB |
| — | Weight | — |
| 12,324 BTU/hr | BTU Output | 785 BTU/hr |
| 30/100 | Home Mining Score | 66/100 |
| — | Release Year | — |
| Scrypt | Algorithm | Scrypt |
| Bitmain | Manufacturer | FluMiner |
Profitability Comparison
Bitmain Antminer L11 Pro (21Gh)
FluMiner L2
Based on BTC price of $78,158 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
The Bitmain Antminer L11 Pro (21Gh) and FluMiner L2 finish in a near dead heat in our weighted scoring. There is no wrong answer here — let your electricity rate, noise tolerance and budget break the tie using the breakdowns above.
Spec Deltas
Stripped to the numbers, this is how far apart the Bitmain Antminer L11 Pro (21Gh) and FluMiner L2 sit on each measurable spec:
- Bitmain Antminer L11 Pro (21Gh) 2000% more hashrate (0.0 vs 0.0 TH/s)
- FluMiner L2 94% better power draw (3,612 vs 230 W)
- Bitmain Antminer L11 Pro (21Gh) 25% better efficiency (172,000 vs 230,000 J/TH)
- FluMiner L2 47% better noise (75.0 vs 40.0 dB)
- Bitmain Antminer L11 Pro (21Gh) 1470% more heat output (12,324 vs 785 BTU/hr)
- FluMiner L2 120% more home mining score (30.0 vs 66.0)
Cost & ROI Over Time
Sticker price versus what the miner actually earns back: the table below projects cumulative net profit at a $0.10/kWh electricity rate.
| Bitmain Antminer L11 Pro (21Gh) | Metric | FluMiner L2 |
|---|---|---|
| $7,999 | Upfront cost (MSRP) | $331 |
| -$8.67 | Daily net profit | -$0.55 |
| -$11,163 | Net after 1 year | -$533 |
| -$14,327 | Net after 2 years | -$734 |
| -$17,491 | Net after 3 years | -$936 |
| Does not pay back at current rates (negative daily profit) | Payback period | Does not pay back at current rates (negative daily profit) |
Projections assume continuous operation, a flat $0.10/kWh rate, and no hardware degradation, pool fees, or BTC price change. Real-world ROI varies.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
FluMiner L2Score: 66/100. 40 dB noise level.
Best for Efficiency
Bitmain Antminer L11 Pro (21Gh)172,000.0 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Bitmain Antminer L11 Pro (21Gh) vs FluMiner L2: which one earns more per day?
At the current BTC price and a $0.10/kWh electricity rate, the FluMiner L2 is more profitable at $-0.55/day compared to $-8.67/day for the Bitmain Antminer L11 Pro (21Gh). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Is the Bitmain Antminer L11 Pro (21Gh) or the FluMiner L2 better for noise-sensitive spaces?
The FluMiner L2 is quieter at 40 dB compared to the Bitmain Antminer L11 Pro (21Gh) at 75 dB. For home mining, lower noise levels make a significant difference in livability.
Bitmain Antminer L11 Pro (21Gh) vs FluMiner L2: which fits a residential setup better?
The FluMiner L2 scores 66/100 on our Home Mining Score (vs 30/100 for the Bitmain Antminer L11 Pro (21Gh)). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
What is the efficiency difference between Bitmain Antminer L11 Pro (21Gh) and FluMiner L2?
The Bitmain Antminer L11 Pro (21Gh) runs at 172,000.0 J/TH while the FluMiner L2 runs at 230,000.0 J/TH — a difference of 58,000.0 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 25% better efficiency (172,000 vs 230,000 J/TH).