Product Features: 1. This is a portable mini pen cap light, using 1 AAA battery. The drip pattern design on the barrel body is beautiful and generous. 2. First gear, the main circuit uses a boost constant current chip, with constant brightness 3. The tail button switch, comfortable to touch 4. The golden yellow copper ring is inlaid at the junction of the black barrel and the tail, harmoniously matched, highlighting the unique beauty and elegance of the 5 flashlight. Two-way holding clip design can be used as pen clip and cap clip, suitable for different occasions. Product Technical Parameters: LED life: 100,000 hours Maximum product brightness: 120 lumens Product effective range: 80 meters Input voltage: 0.8-3.7V Control Mode: 1 level (highlighted) Chip features: constant current chip / constant brightness use Battery: 1*AAA/10440 lithium Battery life: depends on battery capacity Product size: 13.5x1.5 cm Weight (grams): 18g (without battery) Switch method: press the switch at the tail Shell material: aluminum alloy Lens material: optical lens Surface treatment: hard anodizing and anti-wear treatment Waterproof index: IPX6 Anti-fall height: 3 meters Product color: black Quantity delivered: 1*pcs(without batteries)