Product Name: LG | LG Ultra Short Throw 4K Home Projector HU85LS White This fully functional item worked until yesterday. Shipping will be done by attaching the shipping label directly to the original box. The light source uses a 3-channel RGB laser, which reduces rainbow noise by 90% compared to general laser light source models that use a color wheel. HU85LS (DLP, 2700lm, 4K) Brand: LG Electronics Projector Features: Stationary Projection Method: DLP Brightness, Luminous Flux (lm): 2700.0 lm Resolution: 4K (3840x2160) Video Terminals: HDMI terminal, USB Projector Functions: 4K, HDR, Short Throw, Distortion Correction, Keystone Correction, Bluetooth, Built-in Speaker Weight (kg): 12.2 kg