Yes, there are many laptops available with backlit keyboards. Backlit keyboards are a popular feature on many laptops, especially those designed for gaming or productivity. The backlighting allows for easier typing in low-light conditions and adds a stylish look to the laptop. Many popular laptop brands offer models with backlit keyboards, so it's easy to find one that fits your needs and budget. **

The correct grammar for a keyboard with backlit keys is "backlit keyboard." This phrase correctly describes a keyboard that has keys with backlighting. The word "backlit" is an adjective that describes the type of keys on the keyboard, while "keyboard" is the noun that the adjective is modifying. **

To permanently turn on the backlit keyboard of a laptop, you can usually do so through the laptop's settings or control panel. Look for the keyboard settings and find the option to enable the backlit keyboard to stay on at all times. If the option is not available in the settings, you may need to update the laptop's drivers or firmware to access this feature. Additionally, some laptops have a physical function key or keyboard shortcut to toggle the backlit keyboard on and off, so make sure to check the user manual for your specific laptop model. **

Yes, the Lenovo IdeaPad S340 does have a 15.6-inch display. However, it does not come with a backlit keyboard. **

The amount of insulation required for a facade renovation depends on various factors such as the climate, building codes, and the existing condition of the building. In general, the insulation should be sufficient to meet the energy efficiency requirements of the building and to improve its thermal performance. It is important to consult with a professional architect or engineer to determine the specific insulation needs for a facade renovation project. **

The roofing underlayment serves as a secondary layer of protection against water infiltration and helps to prevent leaks in the roof. It also provides an additional barrier against wind-driven rain and snow. In terms of insulation, the underlayment can help to improve the overall energy efficiency of the roof by reducing heat loss and preventing drafts. Additionally, it can provide a smooth surface for the installation of the final roofing material, such as shingles or tiles. **

When renovating a roof for thermal insulation, it is recommended to consider adding insulation materials such as fiberglass, cellulose, or foam board. These materials can help reduce heat loss and improve energy efficiency. Additionally, sealing any gaps or cracks in the roof structure can prevent air leakage and further improve insulation. Lastly, installing a reflective roof coating can help reduce heat absorption and keep the interior of the building cooler. **

Finding a laptop with all those specifications at a price of around 500 euros may be challenging. You may need to consider increasing your budget or compromising on some of the specifications. It's possible to find a laptop with an i5 or i7 processor and 16 GB of RAM within your budget, but it may be difficult to find one with a backlit keyboard at that price point. Consider looking for refurbished or older models to find a laptop that meets your needs within your budget. **