We have under-cabinet halogen lighting in our kitchen that looks great, but requires frequent bulb replacements.  Initially, I was purchasing the replacement bulbs at a local home store...for a premium.  I finally decided to give these bulbs a chance since a pack of 10 is the same price as single similar bulb at my local store.  Wow.  I regret not trying these earlier.  They work great and seem to last just as long.  Keep in mind, such lighting gets abused as heavy items (e.g., stacks of dishes) are placed in the cabinets.  Prior to finding this ten-pack, I was frustrated each time that one burned out.  Now, no worries...not at 45 cents apiece.