These bulbs light up bright/real/neutral/fluorescent white. Our Pure Bright White SMD LED Bulbs deliver a stunning vibrant visual quality that is brighter, stronger and more appealing. Also save on energy with LED bulbs. SMD (Surface Mount Diode/Device) LEDs : SMD LEDs are more recent, resilient, efficient, and long lasting technology for mass production. They allow for more efficient large quantity production and are used more often in the latest general purpose LED lighting solutions. SMDs rapidly increased in the first decade of the 21st century, and do not simply conduct current through the two small pins of the diode as with more tradition DIP technology. It is also 20% brighter than the standard DIP LEDs. There are 2 different voltages for light fixtures 12v or 120v. ***Use extreme caution when purchasing your bulb, selecting the wrong voltage may permanently damage your lighting system. NO REFUND WILL BE GIVEN FOR PURCHASING WRONG BULB. A one year Warranty is provided with each bulb, from purchase date. ***This DOES NOT cover damage due to wiring of the bulb into a system of the incorrect voltage. All bulbs are tested and recorded prior to purchase and will be repeated when/if bulb is returned.