The Rear Cranial Support system is a revolutionary concept that truly enhances the comfort in wearing a surgical headlight. The material is even lighter and more flexible than our older style headband. The cable clips have been integrated into the headbands new design for durability and to minimize fiber breakage. The top support now runs front to back to add module stability. Personalize your LED Headlight by having your name laser marked on the top support. Specifications 10w LED Producing Bright, White Light Color temperature: 4500°K Typical LED life: >50,000 hours Newly Designed Lightweight Headband with Rear Cranial Support for added comfort Headlight Module with 70mm Fixed Spot @ 16” Variable Intensity Control: 0 – 34,000 Lux @ 16” Headband with LED Module Wt. – 9 oz Battery and Holster Wt. – 12 oz Battery Life – 2 hrs 40 min @ Full Intensity, 5 hrs 30 min @ Half Intensity Battery Charger Accepts 100-240V AC, 50/60 Hz input for worldwide operation Battery Recharge Time – 3.5 hrs Warranty (3) Years on LED Headlight and (6) months on battery