Of the 4 options included in this post, the GE LED+ Battery Backup Light Bulb (with rechargeable batteries) was the brightest and the warmest white light. Second is the AlltroLite 4 Pack Bulb Portable Wireless COB LED Light Bulb (battery power) but these give off a cool white light. Next are the puck lights (also battery power). Last would be the battery-operated candles.