CTRL e-tint eyewear

SIZE:<br>Base 7.5<br><br>LIGHT TRANSMISSION:<br>&gt;55% to 12% (smoke lens)<br><br>OPTICS:<br>ANSI Z80.3<br><br>LIGHT SENSOR:<br>Silicon Photodiode<br><br>WEIGHT:<br>1.6 oz. / 45 grams<br><br>FRAME MATERIAL:<br>High Impact Nylon TR90<br><br>LENS MATERIAL:<br>Polycarbonate<br><br>ADD-ONS:<br>Prescription lens mount available (for CTRL® &amp; UVEX® ONE models only)<br><br>BATTERY TYPE:<br>Lithium Polymer (with charge protection)<br>USB Rechargeable, 50 mAh, 3.7 V<br><br>BATTERY LIFE:<br>500 charge cycles (retain 80% + capacity)<br>Usage time: &gt; 70 hrs. (typical usage ON 8 hrs. per day)<br>Charge time: up to 2 hrs. (from a fully depleted battery)<br>Storage time: average of 3 weeks<br><br>OPERATING TEMP:<br>Operating: -10° to 45°C (14° to 113°F)<br>Charging: 0° to 45°C (32° to 113°F)<br><br>STORAGE TEMP:<br>-10° to 45°C (14° to 113°F)<br><br>PACKAGE CONTENTS:<br>Hard cover carrying case, Micro-USB cable, Micro-fiber carrying/cleaning bag, Eyewear retaining strap, Owner’s Manual, *Antifog solution (for select models only)