LIGHT & EFFECTS Lebo Smart Led Bulb with Wifi Range Extender,Smartphone Controlled Dimmable Light Wi-Fi REPEATER AND CONTROL CENTER - Smart led bulb but also a Wi-Fi repeater,Built in omni-directional antenna,compatible with IEEE 802.11b/g/n standard at 2.4GHz, up to 300Mbps. Lebo is the master device of our Lettin smart lighting mesh network, no extra gateway needed, supports up to 80 Lettin devices. INCREDIBLE LIGHTING EXPERIENCE - Dimmable brightness from 0 to 400lm,step-less color temperature adjustment from 2700K  6500K,pre-set and customized lighting scenes. CONTINUOUS UPGRADING - We will keep researching and upgrade every product to bring our customers more ideas and surprises. You will get notifications for more upgrades and new functions. Please click yes and try. EASY TO USE - A19 bulb, standard E27 socket. APP simple to use with user friendly HMI, compatible with iOS and Android smart phone or tablet. Light timer,Sun simulation,Candelabra mode,Starry sky Mode and other cool functions CLOUD SERVICE - Cloud control and backup. Continuous improvement and upgrade both on firmware and software.