2 x 10w tubes The best height for placing is 1.5m-2m. Avoiding the strong light. Don't place it before electric fans. AC: 220-240v, 50/60hz, 16w Prevent children from touching the pest-killer. Keep conductive materials a way from the pest-killer. Make it a rule to clean the killer. Before clanging it, cut off the power. While it is killing pests,the sound is normal.