The integrated constant current linear LED driver inside the bulb uses a system called thermal foldback to protect the LEDs and the bulb components.The LED driver operates from a 6V to 24V input and offers constant current output at up to 1 Amp.
Although reducing the current reduces luminosity, the current reduction is minimal and such that the change in luminosity is below the threshold that a consumer can detect. Fortunately, the human eye is poor at detecting luminosity changes in high-brightness devices so there is reasonable flexibility in the balance between controlling temperature and noticeably compromising luminosity. Only DOT compliant Street Legal LED headlight conversion available;First 6-volt daytime running light compatible LED bulb available;LED bulb features precision filament geometry for no-glare illumination;No fan, head-sink, or other obstructing/ cumbersome cooling system;Physically matches original bulb for OEM fitment and easy DIY installation;Color Temp: 6000K;Input Voltage: 6-32V DC;DRL Compatible: YES;Power Draw: 17W/ Bulb;Lumens: 3,600LM/ Set; Efficacy: >100lm/W*;*Industry-Leading Efficacy Ratio;California Residents: WARNING Oracle Lighting 9007 - V-Series LED Headlight Bulb Conversion Kit - V5241-001 ORACLE Lighting's new V-Series bulbs feature our SmartDrive Active Thermal Regulation (ATR) temperature management. If the bulb becomes hot and surpasses optimal working temperature, the driver can reduce the current by altering the PWM duty cycle until temperature stabilizes.