Is It Safe to Paint a Lightbulb?
If you decide to paint a lightbulb, observe all applicable safety precautions. If possible, use the paint only on cooler bulbs, such as LED bulbs. For incandescent bulbs, use lower wattage bulbs, such as 60W bulbs or less.
Paint Adhesion and Durability on Lightbulbs
The lightbulb’s type and operating temperature are the two main factors to consider when painting a lightbulb. Many types of incandescent lightbulbs made of glass have been phased out in favor of higher-efficiency lightbulbs. Some incandescent lightbulbs can still be purchased, including three-way bulbs, chandelier bulbs, refrigerator bulbs, plant grow lights, and more. Incandescent lightbulbs’ surface temperature ranges from 150 to 250°F, which can be too hot to paint on. By contrast, an LED lightbulb’s surface temperature is at least two-thirds less than the temperature of incandescent bulbs. With temperatures between 50 and 85°F, this leaves LED lightbulbs well within the safe operating temperature ranges for most paints.
Ways to Paint Lightbulbs
Depending on the desired look, you can paint the lightbulb with spray paint, use a brush, or draw on it with a paint pen. With all methods, protect the screw thread contact and the electrical foot contact (the very end) with painter’s tape. Wrap about 4 inches of painter’s tape around the thread contact, ending at the foot contact.
Spray Paint
If you’d like to paint a lightbulb in one or two colors, stained glass spray paint from a can is your best bet. Coverage will be smoother and more continuous than with a brush.
Brush-on Paint
When the idea is more to decorate the lightbulb more than to colorize the room, you’ll want to use a brush to apply water-based glass paint. You can even combine spray paint with the brush to give your artwork a beautiful color background.
Permanent Marker Pen
A set of indelible color markers gives you a quick, easy, and precise way of creating outlines and filler color on lightbulbs. Unlike paint, if you make a mistake, you can quickly wipe off the marker with a rag and isopropyl alcohol. As with the brush-on method, you can begin with a spray paint color base. Because LED bulbs produce so much white light, you may want to spray on an initial color coat to tone down the light.
Tips for Painting Lightbulbs
Always wear safety glasses when painting lightbulbs in the event they shatter. Buy several lightbulbs and test your paints on them. Before painting, first double-check that the bulb is actually working. For a diffused look, scuff the bulb with fine-grit sandpaper before painting it. Experiment with combining different methods of painting lightbulbs.
