It is single signal transmission programmable led pixel strip. Only with One Data wire. the same as WS2811 and SK6812
But It is difference,the WS2812B is just addressable individually, IC just inside on the led.just have DC5V Working Voltage,can be control by extend controller to achieve the flash, movies and so on, Indoor and outdoor is suitable.
It is the most common single control led strips.
RGB LED Tape,WS2812B Rgb LED,WS2812B LED Strip,WS2812B Digital LED Strip SHEN ZHEN SEL LIGHTING CO.,LTD , https://www.sellighting.com
The LT3796's 6 to 100 volt input voltage range supports a wide range of applications, including automotive, industrial and architectural lighting. The new product uses an external N-channel MOSFET and provides a white LED of up to 85 volts from a nominal 12 volt input with power exceeding 50 watts.
The LT3796 provides over 94% efficiency in boost mode to minimize external heat dissipation. A frequency adjustment pin allows the user to set the frequency between 100k and 1MHz, thus optimizing efficiency while minimizing external component size and cost. Combined with the thermally enhanced TSSOP-28 package, this component can be a fairly small HB LED driver or charger solution.
The LT3796 uses True Color PWM dimming to provide constant LED color from a 3000:1 dimming range. For less demanding dimming requirements, the CTRL pin can be used to provide a 10:1 analog dimming range. The LT3796's fixed frequency, current mode architecture ensures stable operation over a wide range of supply and output voltages.
Powerful open and short circuit protection maximizes the reliability of the entire system, while C/10 detection optimizes the charging design of batteries and supercapacitors. Other features include frequency synchronization, configurable UVLO, and a settable fault restart timer.
The LT3796EFE is currently available in a thermally enhanced TSSOP-28 package starting at $3.45. The extended temperature version or the I-grade version of the LT3796IFE starts at $3.86, and the high-temperature class, or H-class option, is priced at $4.11 for the LT3796HFE, which is priced at a unit price of 1,000 units. All versions are available. 
Linear Technology has released a 100 volt (V) high-voltage current sense DC-DC controller, the LT3796, which is designed to regulate constant current or constant voltage. Ideal for driving high brightness (HB) LEDs.