The HV9910B includes a PWM dimming input that can accept an external control signal with a duty ratio of 0 - 100% and a frequency of up to a few kilohertz. It also includes a 0 - 250mV linear dimming input which can be used for linear dimming of the LED current. The HV9910B is ideally suited for buck LED drivers.
The oven temperature used to cook a beef roast is usually set somewhere between 300 degrees and 450 degrees Fahrenheit. The recommended cooking temperature for your roast is usually determined by the type of beef cut that you plan to roast.
TIPS FOR ROASTING BEEF. 1  Let the meat come to room temperature before you cook it. 2  Roast the beef at a high temperature (240Â°C/fan220Â°C/gas 9, or as high as your oven will go) for about 15 minutes to get the heat through to the centre of the joint. 3  Rest the meat before carving. Roast the beef at a high temperature (240Â°C/fan220Â°C/gas 9, or as high as your oven will go) for about 15 minutes to get the heat through to the centre of the joint.