Overview
DarwinFPV Bling Series Bling 1504 4000KV is a brushless FPV drone motor designed for 2–4 inch small drones, featuring a diamond-inspired electroplated look and a 12N14P magnetic structure for efficient, stable power delivery.
Key Features
- Diamond-inspired electroplated design for high visibility during rotation
- 12N14P framework (upgraded from traditional 9N12P design concept)
- NSK bearings, N52H magnets, and 220°C high-temperature resistant copper windings
- Lightweight build: 10±0.2 g (including wires)
- Mounting pattern: 9x9 mm (M2)
Specifications
| Version | Bling 1504 4000KV |
| KV | 4000KV |
| Stator dimension | Φ15×4 mm |
| Rated voltage | 16V (4S LiPo) |
| Idle current | 0.8A |
| Maximum current | 14.5A |
| Maximum power | 232W |
| Framework | 12N14P |
| Prop shaft | Φ1.5×3.5 mm |
| Interphase resistance | 243 mΩ |
| Bearing specification | Φ2×Φ5×2.5 mm |
| Rotor | Split |
| Magnet | N52H |
| Winding | Single strand copper winding |
| Lead wire size | 28AWGx150 mm |
| Mounting holes | 9x9 mm (M2) |
| Dimensions | Φ18.25×19 mm |
| Weight (including wires) | 10±0.2 g |
| Applicable models | 3–3.5 inch Freestyle FPV Drones; 2–5 inch CineWhoop FPV Drones; 4 inch Long Range FPV Drones |
Thrust Test Data (16V)
Propeller: GEMFAN-3525-3
| Throttle (%) | Voltage (V) | Speed (RPM) | Current (A) | Thrust (g) | Power (W) | Efficiency (g/W) |
| 10 | 16 | 6100 | 0.1 | 13 | 1.6 | 8.13 |
| 20 | 16 | 10700 | 0.5 | 51 | 8 | 6.38 |
| 30 | 16 | 14100 | 1.3 | 94 | 20.8 | 4.52 |
| 40 | 16 | 16800 | 2.2 | 132 | 35.2 | 3.75 |
| 50 | 16 | 19700 | 3.6 | 182 | 57.6 | 3.16 |
| 60 | 16 | 22100 | 5.2 | 231 | 83.2 | 2.78 |
| 70 | 16 | 24200 | 7.0 | 281 | 112 | 2.51 |
| 80 | 16 | 25600 | 9.0 | 332 | 144 | 2.31 |
| 90 | 16 | 27400 | 11.4 | 370 | 182.4 | 2.03 |
| 100 | 16 | 29700 | 14.7 | 439 | 235.2 | 1.87 |
Propeller: HQ3525-3
| Throttle (%) | Voltage (V) | Speed (RPM) | Current (A) | Thrust (g) | Power (W) | Efficiency (g/W) |
| 10 | 16 | 6140 | 0.1 | 13 | 1.6 | 8.13 |
| 20 | 16 | 10900 | 0.5 | 52 | 8 | 6.50 |
| 30 | 16 | 14600 | 1.2 | 95 | 19.2 | 4.95 |
| 40 | 16 | 17200 | 2.1 | 132 | 33.6 | 3.93 |
| 50 | 16 | 20000 | 3.4 | 177 | 54.4 | 3.25 |
| 60 | 16 | 23100 | 5.0 | 238 | 80 | 2.98 |
| 70 | 16 | 25200 | 6.8 | 287 | 108.8 | 2.64 |
| 80 | 16 | 27400 | 8.8 | 335 | 140.8 | 2.38 |
| 90 | 16 | 28400 | 10.8 | 371 | 172.8 | 2.15 |
| 100 | 16 | 31200 | 14.5 | 469 | 232 | 2.02 |
What’s Included
- Bling 1504 4000KV Motor
- M2*5 Hex Socket Black Round Head Screw (x5)
- Sticker (x2)
Applications
- 3–3.5 inch freestyle FPV drones
- 2–5 inch CineWhoop FPV drones
- 4 inch long range FPV drones
For compatibility questions (props, ESC/current headroom, or build recommendations), contact support@rcdrone.top or visit https://rcdrone.top/.
Details

A diamond-inspired electroplated finish adds standout visibility while keeping the Bling 1504 lightweight for small FPV builds.

Built to deliver solid performance and durability without the premium price tag.

The upgraded 12N14P magnetic structure is tuned for efficient, stable power delivery on 2–4 inch drones.

NSK bearings, N52H magnets, and high-temperature copper windings support smooth running and long-term reliability.

A compact 1504 stator size helps keep micro freestyle and CineWhoop builds responsive and agile.

Key specs at a glance for matching props, frames, and ESC current headroom.

Reference thrust data at 16V (4S) helps compare prop options and expected current draw.

The standard 9×9 mm M2 mounting pattern fits many popular micro frames.

Everything needed for installation is included: motor, M2×5 screws, and stickers.
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