Blue Colored Bulb Covers are translucent precision molded bulb cover for miniature bulbs. These pliable slip-fit colored filter caps are an economical way to enhance your lighting application. Colored bulb covers are precision molded, reusable, interchangeable and durable. These Colored Bulb Covers are resistant to various ambient conditions such as Ozone, sunlight and many chemicals. Colored Bulb Covers are impervious to color shift and are temperature stable from -50 degrees Celsius (-50 Fahrenheit) to 180 degrees Celsius (356 Fahrenheit).