F means that the product is rated in its category in terms of energy efficiency. The Energy Labeling system is based on EU Regulation 2017/1369/EU. F Philips 65HFL4518U/12, 65", 4K Ultra HD, 3840 x 2160 pixels, LED, 16:9, 350 cd/m² Philips 65HFL4518U/12. Display diagonal: 65", HD type: 4K Ultra HD, Display resolution: 3840 x 2160 pixels. Product color: Black, Panel mounting interface: 200 x 200 mm. Operating system installed: Android TV, Video formats supported: AVC, AVI, H.264, HEVC, MKV, MPEG1, MPEG2, MPEG4, VP9, Audio formats supported: AAC, MP3, WAV, WMA, WMA-PRO. RMS rated power: 20 W, Audio decoders: DTS-HD. Wi-Fi standards: 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Bluetooth profiles: A2DP, SBC