A15 Appliance Light Bulb, 4W LED Bulb Replace 40W Refrigerator Light Bulb, 120V 385 Lumens 3000K Medium Base Bulb, 6 PackColor:3000K Warm 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. a15 e26 led bulb 385-410 lumens replaces 40w appliance bulb, means 4 Watt LED power consumption has the brightness of 40 Watt incandescent(385 - 410 lumens) Efficient The light effect of 92%, the electrical energy can be completely converted into LED light energy. Power factor up to 0.98, this a15 ceiling fan light bulbs with high brightness saves up to 90% energy compared to conventional halogen lamps. Pleasant Color Temperature The a15 medium base bulb with a color temperature of 3000 Kelvin and 6000 Kelvin is at your disposal to decorate your room and create a pleasant atmosphere. Important Note 1 - Before purchasing, please make sure the specifications (size / voltage / socket) of your previously used bulbs are in the sound with our LED bulb. If you have any questions, please contact our customer service team to avoid useless due to incorrect product specifications. 2 - Remove the power before installing the a15 freezer bulb. Support If you have any questions, please do not hesitate to contact us. I think we can offer you a satisfactory solution.