All Light bulbs might look simi- lar but only top quality bulbs can last longer and much bright- er than others. Most bulbs sells on ebay are low quality's. You can actually see the difference from seller bulb pictures, seller feedbacks, seller return & ex- change policies and warranty period, etc. If not good, even they sell cheaper price please reconsider before purchasing from them cause you might end up wasting your money (espe- cially buying from intern- ational sellers). USHD bulbs are top quality guarantee or full re- fund(no risk at all). Your satisfac- tion is always our #1 priority so buy with confidence. Please read our store policies for more details and read our customer feedbacks.