Lamp cover - USA silicone Red 24875U
#03-8063-4American made factory original SILICONE based elastomer lamp sleeves are designed to withstand high bulb temperatures. These sleeves can actually extend bulb life by up to 6% by acting as a heat sink for the lamp.
For use on #44, #47, #555 and all similar shape miniature lamps. Also available in blue, yellow, green, and white.