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, red, yellow, white, and green.
Reference:
- 545-5014-07
- 03-8063-12