This is Sofirn New version of SP40 series LED Headlamp-- HS40
The difference between SP40A and HS40:
1, SP40 max output 1200LM , HS40 max output: 2000LM
2, Different : SP40A with TIR , while the HS40 with orange peel reflector
3, Different LED: The SP40A with LH351D LED (90 CRI), while the HS40 with SST40 (70CRI)
4, Charging Port: The SP40A with Micro USB charging port, while HS40 with USB-C charging port
5, Outlooking: Different Knurling

  Features:

1. Super Bright: HS40 delivers up to 2000 lumen max output out from a single bright 5000K SST40 LED. It goes 175m effortlessly illuminating a backyard.

2. Lightweight: Weighing only 65g and with adjustable headband, you wont even notice wearing it.

3. Comfortable & Convenient: Adjustable nylon headband for a snug and comfortable fit. You are able to detach the light making it become a hand-held flashlight and fitting it in your pocket perfect. Switch between different lighting modes with a single button.

4. USB Rechargeable & Fast Charging: HS40 is powered by one 3000mAh 18650 battery, Being built into the Sofirn HS40 headlamp is USB-C charging. The flashlight runs 8 hours at medium mode, 2 hours at High. 

5. TOUGH & Waterproof: IP68-rated waterproof flashlight can work well in heavy rain. This light can be temporarily submerged under water for a while (up to 2 meters) in case of accidental falling while you are boating or fishing. Its durable aluminum body and shock-resistance endure rough handling.

• Emitter: 1x SST40 LED with a lifespan of up to 50,000 hours

• Battery: 18650 battery

• Operating voltage: 7 V - 4.2V

• Dimension: 111mm (length) × 26 mm (head diameter) x 25 mm (body diameter)

• Weight: 65grams (without battery, without headstrap)

• Headlamp body: Aerospace grade 6061 grade aluminum alloy, CNC manufactured to hard-anodized to military grade specification type III, anti-abrasive finish to get solid built body, anti-crash geometry and better heat

• Toughened mineral glass - scratch and wearresistant

Automatic Stepdown: Turbo mode steps down to High mode automatically to prevent  overheating.