Batteries, what a hassle. This small-but-mighty safety light set is rechargeable, so you'll never have to change batteries again.

Recharge Type: Micro-USB rechargeable — Charges via any standard USB port (charging cable included)

Brightness: 60 lumens front, 20 lumens rear

Battery Type: Lithium Polymer

Recharge Time: 3-hour recharge

Mounting Options:

Universal Mount - Action-camera-style mount fits most helmets and handlebars 22–35mm in diameter

No tools required

Product Weight: 44 grams (front 20g, rear 22g)

Run Time:

High mode: front 2 hours at 60 lumens, rear 1.5 hours at 20 lumens

Flash mode: front 3 hours at 60 lumens, rear 3 hours at 20 lumens

Water Resistance: IP-65 submersible - Ingress protection rating or "IP Rating," is a techy way to describe the level of water- and dust-proofness of a product. This light meets the IP-65 Standard, which means it is totally protected against dust/grit and protected against low-pressure water jets from any direction.