Power rating: 4.5W; Working Volt: AC 110~240V; Frequency: 50~60Hz; Luminous flux: 260~300lm; Lighting Angle: 80~120 Degree; Chip Brand : Bridgelux EPISTAR; Connector: E27; Color temperature: White 5700~6300K; Operating life: 10000H; Bluetooth version: Bluetooth v4.0; Drive unit: 50mm; Amplifier power: 3W; Frequency range: 2.4GHz~2.480Hz; Bluetooth protocol: A2DPV1.2 / AVCRPV1.0 / DIV1.3; Distortion: 0.1%; Working temperature: -40~+80'C; Compatible devices with Bluetooth function such as Smart phone tablet PC IPAD IPHONE IPOD etc; Suitable for home mall office etc places. Bluetooth connexction: 1. Plug the E27 LED lamp into the socket so the LED light and Bluetooth speaker function will turn on; 2 Open the Bluetooth function of mobile devices searching "BB Speaker" enter into matching mode; 3 Manual clicks the device automatically paired and connection the connection is successful will issue a rising tone of voice prompts (No need of password in general situation "0000" or "1234" for special devices); 4 Have been successfully paired device will automatically connect to Bluetooth speaker next time. If the Bluetooth phone connection is successful with music light incoming calls Bluetooth music lights automatically switch to phone calls mode; After answering completed automatically converted into music playback mode.