... .W:13.8kgOn/off switch, 120sec timerUsage:Be sure the UV lamp and every part fix well before using it.1 ... ’s up.4, Using 4*9w bulb, please replace the UV bulbs every 6 months, be sure to turn lamp off ... before replacing.Notice:1, Don’t stare at the UV bulb straightly2, In order to keep the efficiency, please operate ... gel manual, don’t shorten or use over time. nail uv lamp