Up to 22 Sets Connectable: These warm white led Xmas tree lights string are safely end-to-end connectable up to 22 sets for total 726ft decor length on one plug! | Non Flicker LED Christmas Lights: Full Wave Rectification Technology, Each string is full wave rectified, which eliminates any flickering making these soft white Christmas tree lights brighter than ordinary LED mini Lights. | Wide Angle, Brighter Christmas Lights Decoration: Designed with a concave lens, these wide angle bulbs are 25% brighter than standard-shaped light strings and disperse light equally in all directions, making your decoration shine brilliantly from any viewing angle. | Waterproof Durable Decorative Holiday Lights: Patented single piece non-removable bulb/base construction, which seals out moisture, eliminating failures from loose, broken and corrosion, therefore, these commercial grade warm white tree lights are very durable long lasting and extremely energy efficient, reducing power consumption by more than 80% compared with conventional bulbs. | Perfect Christmas Decoration: UL Certified; approved for indoor/outdoor use, mini Christmas lights are ideal for you to spice up your Xmas, party, Christmas tree, garden, room, fireplace, yard, and so on to add excellent Christmas ambiance!