Product name: T15 tail light
Lamp bead: adopt 16 bright red patch LEDS.
Battery: Use 081350 polymer lithium battery
Charging mode: USB charging
Brightness: 20 lumens
Mode: mode 5          
                 Touch the switch :(flash, slow flash, firework, cannon, breathing)
                 Long press the switch:   OFF
Battery capacity: 500mAh
Shell material: PC engineering plastics
Charging port: Micro USB Charging (5V)
Product size: 7.5x2x2.4cm
Package size: 7.9*4.1*2.5cm
Net weight: 25g (lamp)
Gross weight: 51 g   (Lamp, strap, buckle, USB cable, color box)

Packing quantity: 200pcs (net weight: 10.3kg, gross weight: 11.3kg)
Packing size: 41*29.5*20.5cm (outer volume: 0.025m)