how to adjust brightness on surface pro 4

Surface Pro X with 4G LTE Advanced Pro: Up to 15 hours of battery life based on typical Surface device usage. Battery life varies significantly with settings, usage and other factors. All settings were default except screen brightness was set to 150 nits with Auto-Brightness disabled. The active use portion consists of (1) a web browsing test accessing 8 popular websites over multiple open tabs, (2) a productivity test utilising Microsoft Word, PowerPoint, Excel and Outlook, and (3) a portion of time with the device in use with idle applications. Testing consisted of full battery discharge with a mixture of active use and modern standby. Testing conducted by Microsoft in August 2021 using preproduction software and preproduction Surface Pro X with Microsoft SQ ® 1 and Surface Pro X with Microsoft SQ ® 2, 256GB, 8GB RAM devices. Surface Pro X: Up to 15 hours of battery life based on typical Surface device usage. Please refer to this page for more details Internet access required, ISP fees may apply. ***Chatting via SMS is available in limited countries and will be made available to other geos on a rolling basis. ^Pen storage and charging available on selected Keyboards. App availability and compatibility may vary.

Only Surface Pro Signature Keyboard has Surface Slim Pen 2 storage and charging capabilities.

Surface Pro Signature Keyboard and Surface Pro X Keyboard are sold separately.

*Some software, apps and accessories sold separately. Microsoft reserves the right to modify or discontinue offers at any time to the extent permitted by applicable law. Discounted products bought with a qualifying product must be returned if the qualifying product is returned. For full system requirements, see Not valid on prior orders or purchases cannot be transferred or otherwise redeemed for cash or promo code(s).

Some features may require additional hardware. Available features & system requirements may vary by device, country and over time. Requires Microsoft account and broadband internet and/or data plan. Subscriptions for all services are for a pre-paid 12-month subscription term. Offer valid only on select 15-month subscriptions of Microsoft 365 Family or Personal, after purchase of select Surface, PC or Mobile devices. Available in Microsoft Store in the United Kingdom.

How to adjust brightness on surface pro 4