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Power Efficiency

Night vision is a key technology in the functional design of modern body cameras, ensuring clear recording in low-light or completely dark environments. The use of night vision directly affects power consumption and battery life, making it crucial to understand its power performance for practical applications and device optimization.

1. Impact of Night Vision on Power Consumption

Night vision mainly relies on infrared (IR) lamps to provide an invisible light source, enabling the camera to capture images in darkness. When night vision is activated, the IR lamps begin to operate, resulting in additional power consumption.

  • Typical Power Consumption Range: When night vision is enabled on Shelleyes body cameras, the additional power consumption is approximately 0.6W to 0.8W. This range is considered energy-efficient in the industry and helps maximize battery life while ensuring night vision effectiveness.

2. Relationship Between Number of Infrared Lamps and Power Consumption

Different Shelleyes body camera models are equipped with varying numbers of infrared lamps:

  • Both the S7 and S8 provide night vision functionality, with configurations of 2 and 8 infrared lamps, respectively.
S8 8 Infrared LEDs
S4/S7 2 Infrared LEDs
  • Notably, despite a fourfold difference in the number of infrared lamps, the actual power consumption is almost the same. This is because:
    • The power of each LED is optimized according to the total number;
    • The overall infrared output is controlled at a similar level, ensuring consistent night vision performance.

Therefore, a higher number of infrared lamps does not directly translate to doubled power consumption or significantly enhanced night vision. Shelleyes employs rational optical and circuit control strategies in its designs, ensuring that even with different numbers of IR lamps, both power consumption and night vision performance remain essentially equivalent.

3. Battery Capacity and Runtime

Battery capacity directly determines night vision operating time:

Battery CapacityTurn off Night Vision ModeTurn on Night Vision Mode
1500mAh(S1)6-8 hours3-4 hours
2500mAh(S3)10 hours4.8hours
4400mAh(S4/S7)16 hours10+ hours