The MEL-PG1 (Micro Effects Light, Pure Green) is a simple plug and play green LED light source with a built in DC barrel type connector. The light kit operates from a 9 volt battery (not included). The MEL is optimized for high light output with a narrow spotlight beam at 9 volts DC with a nominal power of 0.18 watts operating at 20ma ref. Well suited for various LED lighting applications such as: props, theatrical stage effects, costumes, escape room game props, and Sci-Fi props. This kit includes 3 pcs green MEL, 3 pcs MED1 (Micro Effects Dimmer) control, and 3 pcs 9 volt battery clips. The overall length of the light, control and the clip is 20” ref. For effects projects, the Micro Effects Light can be secured with Gaffer's tape or hot melt glue for building props and scenery. The MED1 Micro Effects Dimmer provides dimming, multimode effects, and on / off control of 5 – 24 The Light button is used in static mode for dimming. Note the Static (0 mode) dimming function is between effects #8 and #1 when sequencing through the modes. The Speed (On/Off) button provides ten speed levels for the effects modes and is also used to turn the unit off when it is held longer than 3 seconds. The Mode button provides eight dynamic effects, and the Static (0 mode) between effects #8 and #1. 0) Static mode for dimming 1) Up / Down – ramp up on ramp down off – repeat 2) Up / Down – flame flicker – always on 3) Strobe – fast 4) Blinking – long off 5) Blinking – long on 6) Flash - burst of pulses (emergency vehicle light) 7) Strobe – slow (beacon light) 8) Up / Down varying brightness – brief off – repeat