Features: Practical function: These clear replacement bulbs are designed to maintain product performance, with nice workmanship and practical function, which will provide you with a pleasant using experience. Share with others: These UV-C lights bulbs replacement bulbs are suitable for sharing with your family members, friends, relatives, neighbors, colleagues and anyone you like, these enjoyable supplies will be helpful for their life, and bring them a lot of convenience. Specifications: Wattage: 9 Watt Base type: G23 2-pin Size: about 16.5 x 3 x 1.7 cm/ 6.5 x 1.2 x 0.67 inch Package included: 4 x UV Replacement Bulb Warm notes: If the light begins to flicker or change color, it is time to replace the bulb. It is suggested that the bulb be replaced every 10-12 months depending on usage. The related brands and model numbers are not our trademarks, just to show compatibility, our trademark is Kittmip.