I bought 4 x 15 of these equivalent 11w LED bulbs to replace glass incandescent bulbs in outdoor string lights. I had to replace 48 lightbulbs. I only used them for one night but first impressions are really good. Based on previous experience with relatively cheap LED bulbs, I expected at least a few bulbs to fail immediately. I was pleasantly surprised that 48 of the 48 bulbs installed worked. The plastic body is transparent enough that you can barely tell it's not glass from a few feet away, but a quick test from about waist height on concrete confirms they won't break easily (unlike the glass bottles, that came with my garlands and they break if you sneeze on them - not good for walking across my patio and pool). The only reason I removed the star is that the quality control seems a bit lacking. While all 48 bulbs lit up one by one, two of them had their filaments bent so that they almost touched the plastic case. They still work and can't tell for sure from across the yard, but it bothered me enough that I swapped them out and kept them as spares. To be honest I would only deduct 1/2 star for this if I could but I can't and I don't think they deserve a perfect 5 stars for that one reason alone. Overall, for the price, I highly recommend these pears. . Just buy some extras if you think the visual imperfections will bother you like they did mine.