UV Purple Indoor Outdoor Spot Light Bulb 18 LED Ultrabright PAR16 E26 405nm All Purpose outdoor ready extremely low power consuming 405nm blacklight purple LED PAR20 bulb Widest spot light type bulb available, featuring a full 85% beam - perfect for wide lighting. Double sealed fpr better outsoor protection. Exclusive silicone potting around the LEDs protects bulbs from vibration damage. Wide 395nm to 410nm spectrum blacklight purple lighting great for illuminating most blacklight reactive pigments, paints and dyes, plus many glow in the dark products. Perfect for showing off Minions Web Black light and GitD web sticks. Dimmable with Lutron digital dimmers. Designed to work with the features of holiday lighting controller from Light-O-Rama ( LOR ), DLight, Animated Lighting Haunted House in a Box, FireFly, LightningFX, Fright Ideas Pico and EFX-Tek.