Item:for 2812 RGB Arm Light Strips Programmable 4 Lamp Beads LED Board Item name:LED light strip Size:37mm x 6.5mm x 4.3mm Cable length:50mm Heat shrink tube length:35mm Weight:about 1.2g/pcs(only light strip) Used for FPV drone arm Photoelectric Parameters: Light intensity(IV):(test conditions:IF=12mA) R: 200-400mcd G: 800-1000mcd B: 200-400mcd Half-intensity viewing angle(201/2): 120deg(test conditions:IF=12mA) Dominant wavelength(D):(test conditions:IF=12mA) R: 620-625nm G: 525-530nm B: 465-470nm Reverse current(IR): maximum to 1uA((test conditions:VR=7V) Brightness Binning:(test conditions:IF=12mA) Red(code K07): 200-400mcd Green(code K30):800-1000mcd Blue(code K07): 200-400mcd Color Temperature Binning:(test conditions:IF=12mA) Red(code R0): 620-625nm Green(code G13):525-530nm Blue(code PB12): 465-470nm Support welding and welding-free multi-stage series connection. (Supports up to 8 levels of series connection, Betaflight currently only supports 32 lamp beads.) Support welding and welding-free connection to the flight controller. (Direct welding of flight controllers and light strips. The flight controller and the light strip seat are inserted directly without welding.) Color:As Shown Material:ABS Package Contents: 4 * Armlight 5V RGB For RC FPV Racing Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.