Description: High output power, 18pcs 3W LED chips, 141mw/cm2, 60 degree lens with good penetrate, made of aluminum material, long service life, safe for human body. Red Light + Infrared Light: 660nm deep red leds + 850nm infrared leds, but 850nm light is invisible to the naked eye, so when using this bulb, only half of the chip will be illuminated. For indoor use only, not waterproof. Relieve Body Pain: Designed to deliver infrared heat to the body, and improve the circulation of the target area, suitable for long time working staff, joint pain, sore neck after sleeping, office sedentary, people with skin problem, sore muscles after exercise. Compatible with E26/E27 lamp sockets, please connect the lamp and fix it on the socket before turning on the switch. How to use: We recommend using 3-6 inches of light, exposing each pain point for 5-25 minutes, 1-2 times a day. (or use as directed) Specification: Material: Aluminum material LED Quantity: 18pcs (each 3W) Power: 54W, 141mw / cm2 Sockets: E26/E27 Size Chart: 4.7x4.7inch Package Includes: 1 Piece Red Light Lamp 1 Piece Bracket 1 Piece Power Cable (US) 1 Piece User Manual Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!