Micro Effects Light 3 Warm White LED MELs 
3 pcs 9 volt battery clips
Batteries Not included ***
Easy assembly plugs together and operates on 9 volt battery
3 pcs MEL-WW1 (MEL LED Warm White), DC barrel connector LED light
3 pc BCC1-9V, 9 volt battery clips
The MEL (Micro Effects Light) is a series of simple low cost LED light sources with a built in DC barrel type connector.  The 2.1 x 5.5mm barrel connector is very common for many low voltage DC power applications simplifying the building of a micro effects lighting system in a modular fashion. The MEL operates from 9 – 12 volts DC which allows a simple effects system operating from a 9 volt battery possible.  More complex systems with numerous micro effects lights are possible from a 12 volt DC power source. Lighting systems can range from a single MEL to over 100 MELs depending on the complexity of a lighting project. 
The MEL is optimized for high light output at 9 volts DC with a nominal power of 0.18 watts operating at 20ma ref. With an input of 12 volts, a power consumption of 0.34 watts is typical, operating at 28ma ref. With input higher than 12 volts there is a diminishing light output due to thermal loading of the LED. The MEL is dimmable by either PWM (Pulse Width Modulation) type dimmers or with variable voltage input from 7 – 12 volts DC. The MEL can be made with pure fully saturated LED colors and with phosphor converted colors for a wide color gamut. The LED lens is water clear with a 30 degree output angle for a narrow beam. 
The MEL may be operated from a 9 volt battery for portable applications. When using a 9 volt battery it is recommended that the number of MELs does not exceed six in order to limit the load current to about 120ma for battery life.  The MEL is equipped with a barrel connector type DC power jack to mate with a plug of the same type. The MEL uses a positive center power connection. 
The axial body of the MEL LED is of a small size and molded in black ABS resin. The MEL body overall length is 1.42” (36mm) and the diameter is 0.48”
12.2mm) nominal.    
Well suited for various LED lighting applications such as:
Scenery / Props / Models / Animatronics / Robotics
Fx- Special effects / costumes
Theatrical stage and set obstruction marking
Theming, décor lighting and promotion display products
Amusement, arcade, gaming and entertainment lighting
Specialty miniature accent lighting, micro fixtures, micro ceiling drop pendant lighting
Sales and trade show displays and signage