I bought one lamp to evaluate for my home. This lamp is bright, but only illuminates in a directional beam pattern. If placed in a table lamp, half the lamp shade is lit, lighting up the ceiling but leaving the table and the bottom half of the lamp shade dark. The only application this would work in is a down light. The heat sink is bulky and the lamp is over-sized for an A19. If they can make the beam pattern similar to an incandescent, it would work in more applications.