Just finished up replacing all the bulbs in the inserts in 3 of my pins.Color matched with mostly 2smd frosted by 2 of the more popular bulb makers (Not wanting to blame anyone) It seem that about 15% of the bulbs are "duds" reloading with another bulb fixes most.I haven't tried a 3rd bulb in some that still didn't work as I ran out but the incandescent bulbs were working before.I really like the look of LED's in inserts but was wondering if this is normal.