Wireless. The battery can be replaced. Three working modes: Full, Ramping, Pulse. Time setting: 5s 10s 15s 20s 25s 30s 35s 40s. Automatic memory. A full charge can be used for over 200 times (10 s/time). Constant light intensity, the solidification effect is stable even the battery power decrease. with wire or wireless. Even the battery runs out, it can work by connecting power supply with wire. Power input AC 100V-240V 50/60 Hz Net weight: 143g Light output 650-850mW/cm2 Dimensions: 32*37*264mm