Please let me know if there's anything you're concerned about. It's difficult to judge from photos, but I'll do my best to take pictures of the areas you're interested in. New 38 Lights x SOMABITO Poseidon Skull Set of 2 POSEIDON SKULL 38explore Size: H102mm φ42mm Weight: Approximately 100g (including batteries) Light Source: MAX 200 lumens Water Resistance: Splashproof Battery: 3350mAh Burn Time: High - Approximately 9 hours The switch is a touch sensor. Can be turned on instantly even in the dark. Brightness can be adjusted in a stepless manner: "Low" → "High" → "Off"