Amazon.com : OLIGHT RN 400 LED Bike Lights, 400 Lumens USB Type-C Rechargeable Bike Front Light, IPX7 Waterproof Bike Headlight for Road Urban Cyclists : Sports & Outdoors
What are Lumens? | Integral LED
Amazon.com: Nitecore NU25 400 UL Ultra Lightweight Headlamp, 400 Lumen USB-C Rechargeable with Lumentac Organizer for Back Packing, Camping and Running : Sports & Outdoors
Magicshine ALLTY 400 Rechargeable USB-C Road Bike Light - Magicshine Official Store – Magicshine Store
Nebo Mycro Headlamp & Cap Light 400 Lumens-NEBOHEADLAMP
Allty 400 small bike light, 400 lumens max for commuters and students
Khlitec 400 Lumens 1200mah Usb Rechargeable Bike Front Light Led Mtb Bright Anti-glare Led Bicycle Headlight - Portable Lanterns - AliExpress
Klein Tools Rechargeable Headlamp with Fabric Strap, 400 Lumens, 3 Modes 56048 - The Home Depot
Phoenix Fenix Tk32 900 Four-color Light Source 400 Lumens Super Bright Rechargeable Flashlight Long Shots - Feet Care - AliExpress
NEBO Headlamp Mycro RC 400 Lumens - Mountain Man Outdoors
Energizer Vision Ultra HD Rechargeable LED Headlamp 400 Lumens, 1 ct - Metro Market