... be completed in 90 seconds.4. Features :0-600 automatic timer, sensing capabilities and fan design.5. More beautiful, smooth curing ... turns red, while the UV lamp is ready to run.B. Set / stop button: Fun indicator turns red, while the fan ... fans ready to run at the same time.3. Timing (Timer): Timer "+" Timer "-" to set the timing time segment, increment of 5 seconds ...