Be prepared for power outages with these new BLACKOUT EMERGENCY BULBS. These bulbs provide up to 500, 185, and 80 lumens of LED lighting technology and are perfect for use as emergency lights or as a backup light source in your home or workshop. With a voltage range of 500, 185, and 80 lumens, these bulbs are versatile and can be used in a variety of situations. They are perfect for anyone who wants to be prepared for unexpected power outages. These bulbs are a 2-pack, so you can have one in multiple locations, ensuring you always have a source of light when you need it.