Using these Zilla Red Night Incandescent Bulbs is easy. First, make sure your pet habitat is turned off and cool. Then, simply screw the bulb into a compatible Zilla® Reflector Dome or a suitable socket. When using, ensure the bulb is at a safe distance from your pets to avoid burns. Don't touch the bulb with bare hands while it's on or just after it's been turned off, as it can be very hot. For maintenance, keep the bulb clean by gently dusting it off regularly. If you notice any significant dimming or if the bulb stops working, it's time to replace it. Always store spare bulbs in a cool, dry place away from direct sunlight and moisture.