Rebaydo 2pcs BAY15D 1154 6 Volt 60 SMD 5730 Dual Filament Reduced Profile LED Bulbs operate with either 6 Volt positive ground or 6 Volt negative ground vehicles. The BAY15D base is 15mm in diameter with offset bayonets and two contacts on the bottom, one for the taillight and one for the brake light. Made with a total of 60 LEDs, including 44 side firing and 16 forward firing LEDs, these dual filament bulbs provide up to 950 lumens for the brake light and up to 750 lumens for the taillight. They have a long life of up to 30,000 hours and are comparable to a 30 to 40 Watt incandescent bulb. The bulb can be dimmed with a variable voltage supply and operates from 3.4 volts to a maximum of 8 volts. White 6000K uses about 495mA at 6.02 volts, Warm White 3000K uses about 495mA at 6.02 volts, Red uses about 405mA at 6.02 volts and Yellow/Amber uses about 415mA at 6.02 volts. Uses about 1A at 6.3 volts for the brake light. Maximum overall length is 1.694" and maximum diameter is 1.058". The LEDs are aligned to the optimum height for maximum light output using a reflector and lens. These bulbs are designed for 6 Volt vintage vehicles, motorcycles and scooters. Please make sure your vehicle or motorcycle is regulated to approximately 6 volts. These LED bulbs do not have built-in load equalizers and may require load equalizers to be installed to operate correctly. Every bulb is tested before shipping. Includes 2 bulbs per package. Available in White 6000K, Warm White 3000K, Red and Yellow/Amber. If the color is not listed then we are out of stock of that color and it takes about 4 to 8 weeks to restock that color. The bulbs are solid state for low power and super long life. SMD means surface mount device and is the square LED. CE and RoHS. Compatible with Flosser 5228 P21/5W 6V E1 2RF A19.