Bloom Dimmable LED Light Bulb, Arctic white Dimmable in regular non-dimming on/off light fixtures and lamps using just the existing on/off light switch Convenient direct access to Night Mode (5% brightness) - turning the switch On-Off-On quickly (within 1 second) Ultra energy efficient - 10 watt Nanoleaf Bloom replacing the 75 watt A19 bulb, saves you more than $215 within its lifetime Extra long lifetime of 27 years - reduces the hassle of frequent replacement Safe for the environment and your home - durable design and extremely eco-friendly