Led curing light dy400-4 Dy400-4 led curing light is the lastest model-guntype curing light with high-effiency, outstanding function and convenient operation! the inner radiating enable long-working time for this device! Features 1 two models with light intensity of 1000mw/cm, 2000mw/cm 5 watt led. 2 beep at each 5-seconds to indicate remaining curing time 3 various curing time: seven preset curing time 5/10/15/20/25/30/40 seconds. 4 three preset programs A. Fast mode: full power all the time B. Soft 1 mode: generally increasing power in first 5 seconds, then full power till the end. C. Soft 2 mode: generally increasing power in first 5 seconds, then half power till the end. 5 equippend with radiating fan to ensure the durable performance. 6 inner build-in light meter within the base. 7 cord/cordless inchargeable.