1、Heat Dissipation Material: Engineering grade ABS heat dissipation material, stable performance, scientific design, long lamp life. Remote control or switch control of pool light bulbs. 2、RGB Symphony: 7 kinds of static + 5 kinds of dynamic color modes, remote control remote control, RGB color changing pool lights, make your swimming pool colorful at night. 3、Energy Saving and Environmental: Ultra high brightness, 80% energy saving than ordinary bulbs, high quality LED chips, 40W power, equivalent to ordinary 300W‑500W swimming pool bulbs, saving more than 80% of electricity bills. 4、With Memory Function: It can remember the color of the last shutdown, and the next time it is turned on, the previously saved color pattern will be displayed, making your pool glow instantly. 5、Easy Installation: E26 base, unscrew the old bulb and replace it with our bulb to complete the installation. Product size is 170x170x140mm / 6.7x6.7x5in.