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.
Preheat oven to 500 degrees. If desired, trim off excess fat from roast beef. Season with salt and pepper (and paprika, if desired). Rub meat with vegetable oil. Place meat in roasting pan in preheated oven. Roast beef for 5 minutes per pound. Then turn off oven.