1. The quality LED bulbs in spherical shape with E14 lamp holder are dimmable to 3 levels. The 4watt globe bulb delivers a , flicker light output of 400 lumens and a pleasant warm white light at 2700 Kelvin. Dimensions: 45 x 75 mm (diameter x height). 2. Power: 4 watts energy consumption with a light output of 400 lumens—no warmup time, lower heat generation compared to halogen bulbs. Creates a feelgood ambience with 2700 Kelvin and a color rendering index of Ra80, providing a pleasant warm white light ideal for living rooms, bedrooms, or children's rooms. 3. Dimmable: Adjustable to 3 levels without a dimmer. Dimming is easily achieved by quickly toggling the standard light switch (on/off switch): 1st toggle 100% brightness 2nd toggle 50% brightness 3rd toggle 20% brightness 4th toggle Off Note: A separate dimmer is not compatible—only works with standard on/off wall switches or rocker switches. 4. Durability: Average lifespan of 20,000 hours and up to 15,000 switching cycles