Flower Liquid Mosquito Repellent is a very effective Mosquito Liquid that kills all mosquitoes in your bedrooms and living areas. Simply screw the liquid bottle in to your Flower heater unit and plug in. The little light on the heater unit tells you the device is working. No stress, no effort. Our excellent Mosquito Liquid will protect you through the night – for 60 nights per bottle (at 8 hours per night). One unit is required for every room. Available in all good supermarkets.