Cateye: Qc Testing To Underline Their Quality & Reliability, Cateye Products Undergo The Most Stringent Qc Tests In The Industry, Many Of Which Exceed The Requirements Of Ce. Also Used In The Japanese Auto Industry, Cateye’s Testing Equates To A Return Rate Of Less Than 0.9% Across The Br&. Opticube Lens Technology Cateye Maximise The Best Beam Pattern From Any Led, Utilising Superior Lens & Reflector Technology To Emit A Higher Quality Light & Beam Pattern In Front Of The Rider, Even With Lower Lumen Amounts. Long Press To Turn On & Off A Feature Appreciated By Consumers To Prevent Accidentally Switching On Lights & Loosing Battery Power. This Feature Also Ensures That A Light Is Not Accidentally Turned Off During A Ride. Integral Heat Dissipation Superior Heat Dissipation Maximises The Lumen Power Of The Light For Consistency Of Lumen Output. Never Cycles Through The Off Mode Cateye Were The First To Introduce This Feature, To Avoid The Rider Being Accidentally Left In Complete Darkness While Changing Beam Modes. Front Light Features Double-Click To High (Headlights 400 Lm & Above) To Achieve Maximum Brightness Instantly Without Cycling Through Modes; Double-Click To Flashing (Headlights Up To 200 Lm) To Quickly Cycle Between Constant & Flashing Modes, Ideal For Commuting Use. Orb Simple, Strong, Brilliantly Bright Lights. Durable Aluminium Construction With Anodised Finish. Lens Acts As Power / Mode Button 70% Brighter Than Former Loop 2 Battery Lights Low Profile, Low Weight – Only 20 G Strong Sideways Visibility 2 X 2032 Batteries Included Mode: Output, Runtime Front: 10 Lm Constant: 50 Hrs Fast Flashing: 100 Hrs Slow Flashing: 100 Hrs Rear: 5 Lm Constant: 50 Hrs Fast Flashing: 100 Hrs Slow Flashing: 100 Hrs