Review on VSTAR 10Pcs Halogen 40 Watt 120 Volt by Traci Westhoff

I bought these replacement parts in December 2018. First 2 lasted 3 months, next 2 - 8 months, next 2 lasted 2 months. These bulbs are for my microwave that I bought in 2013 and the bulbs lasted 5 years. Very disappointed with the lifespan of these bulbs, given that the standard bulbs lasted 5 years! I thought the lamp life would be nearly comparable. I used 2 when they arrived December 2018 (As I forgot not to touch the bulb the life of the bulb could be due to oil from my fingers. All future installs were completed with paper towels to install and great care was taken to not to damage the bulb.) Here are the replacement dates: 3 months later I replaced it in March 2019, 8 months later I replaced it in November 2019, 2 months later I replaced it in January 2020.