Hi,
thank you for the response. For some reason I forgot you could adjust the brightness with with the RGB values. This is my code now and it runs perfectly! Thank you so much!
#include <FastLED.h>
#define NUM_LEDS 99
#define LED_PIN 20
CRGB leds[NUM_LEDS];
void setup() {
FastLED.addLeds<WS2812B, LED_PIN, GRB>(leds, NUM_LEDS);
FastLED.setMaxPowerInVoltsAndMilliamps(5, 500);
FastLED.setBrightness(60);
}
void loop() {
uint8_t sinBeat = beatsin8(30, 50, 255, 0, 0);
fill_solid(leds, NUM_LEDS, CRGB(sinBeat,0,0));
FastLED.show();
}