G9 Daylight Bulbs Dimmable, G9 40W Bulb Equivalent(3W LED), 120V 5000K 410 Lumens, Bi Pin Base Corn Bulb, Pack of 6Color:5000K Daylight White Brightness and Watt In fact, the brightness of the bulb is determined by lumens, not performance. But usually the lumens are higher, the higher the performance. However, as technology advances, low wattage and high lumens can be achieved. This means you can achieve brighter lighting with less power consumption. Because of different manufacturers, the parameters of the bulb are also different. LED g9 3w bulb 360-410 lumens replaces 40W halogen lamp g9, means 3W LED power consumption has the brightness of 40W halogen(370 - 400 lumens) Excellent heat dissipation The ceramic base provides the best heat dissipation. The vent on the underside extends the life of the led electric bulb g9 to 25000 hours. Low light loss 46 x 0.2W n with 2835 chips. Multiple beads reduce lamp load and provide the least amount of light loss when used for extended periods of time. These optical beads have high heat resistance and translucency. Efficient With the light effect of 92%, the electrical energy can be completely converted into LED light energy. Power factor up to 0.98, this led g9 corn light bulb with high brightness (> 100LM / Watt) saves up to 90% energy compared to conventional halogen lamps. Pleasant color temperature The led g9 white bulb with a color temperature of 2700 - 5000 Kelvin is at your disposal to decorate your room and create a pleasant atmosphere. Support 2 year warranty, if you have any questions, please do not hesitate to contact us. I think we can offer you a satisfactory solution.