


DUAL PURE WHITE LIGHT: Equipped with a wide-angle COB White LED strip and a focused 130m XPG main LED spotlight, providing pure white illumination without dead angles for running and mechanical work.
SMART MOTION WAVE SENSOR: Features a highly responsive infrared sensor with an extended 20cm sensing range, allowing you to turn this rechargeable headlamp ON and OFF with a simple wave of your hand.
82G ULTRALIGHT & ZERO BOUNCE: Weighing only 82 grams, the soft and flexible silicone band hugs your forehead securely. This ensures a comfortable, bounce-free fit that won't cause fatigue during long-distance running or hiking.
1200MAH & VISUAL INDICATOR: Powered by a built-in lithium battery with USB-C fast charging. Includes intuitive LED battery indicators on the side block to easily inspect your remaining power at a glance.
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Free shipping on all order above $49.99 to most countries.
Most flashlights can directly get 5 years warranty; battery and accessories get 1 year warranty.
Any questions, please email to info@sperasflashlight.com

Need 4 charging slots? Choose between the streamlined, rugged efficiency of the i4 or the premium display feedback of the D4S.
| Feature | i4 (Streamlined Efficiency) | 🔥 D4S (Premium Display) |
|---|---|---|
| Display Type | Clear LED Indicator Bars | High-Definition LCD Screen |
| Charging Slots | 4 Independent Slots | 4 Independent Slots |
| 2A Fast Charging | Dedicated 4th Slot | Auto-Selected by Charger |
| Best For | Rugged, simple, cost-effective charging | Users who want exact voltage/data readouts |
Don't throw away "dead" batteries just yet. The SPERAS i4 features an advanced Li-ion battery restoration function that can safely activate and revive over-discharged cells. Combined with automatic termination upon charging completion, it ensures your batteries are both recovered and protected from overcharging.
The SPERAS i4 is a streamlined, highly reliable model that uses simple LED indicator bars to show charging progress. The D4S is the premium version that features a full LCD screen for exact digital readouts. Both safely charge 4 batteries independently.
On the SPERAS i4, the fourth slot (far right) is specifically designed to provide up to 2A of rapid charging current. We recommend placing your highest-capacity batteries (like a 21700 or 26650) in this slot when you need them charged as quickly as possible.
These are automatic smart charging phases designed to protect your battery. The i4 uses CC (Constant Current) to charge quickly when the battery is low, switches to CV (Constant Voltage) to safely top it off, and uses dv/dt (Delta Voltage) termination for Ni-MH batteries to prevent overcharging.


