All of the LED PAR38 lamps tested offer substantial energy savings compared to halogen PAR38 lamps, and some are more efficacious than compact fluorescent or ceramic metal halide versions. LED products that cover the full range of conventional PAR38 beam angles and that have appropriate color quality, lumen output, and center beam intensity are available. Thus, it is reasonable to conclude that LED PAR38 lamps are (at least in terms of performance) a viable option in most installations where PAR38 lamps are used, although not all lamps can work in all applications (e.g., exterior lighting). Continued expansion of the options available within specific product families would be beneficial, and LED lamps with higher lumen output may be necessary for specialty applications. Lower prices, as well as continued improvements in efficacy, will reduce lifecycle cost and make LED PAR38 lamps more financially attractive.