101mm LIGHT Afterburner Ring Color:BLUE 4V (2S Li-poly) Dimensions 51mm

4V (2S Li-poly) Dimensions 51mm x 28mm x 11mm Weight 16g

that you can find for this engine HERE

This way the battery with higher voltage can be used only as power battery backup and you can avoid constant charging and cycling both receiver battery packs

Performance: 24 emitters with each 60-90 Lumen Voltage: 2S/8V Electricity: ~4A Beam angle: ~100° Internal Dimension: 92mm External dimension: 107mm Weight: 50g (without cable)Ready to use with 2x1m connection cable for 2S LiPo operation

connection cable harness

101mm LIGHT Afterburner Ring Color:BLUE 4V (2S Li-poly) Dimensions 51mmThe new generation of extremely lightweight, compact and very efficient afterburner rings. The new rings are based on the current COB LED technology and can be built extremely compact due to the high integration. About 20 different types with only 3 to 4mm width now allow the use in almost every electric or turbine jet or helicopter. Many of the rings can be used together, in orange as well as in blue available to the different effects to enable.