The disclosure provides fusion implants, instruments and methods for insertion of the implants between opposing vertebral bodies to facilitate stabilization or arthrodesis of an intervertebral joint. Each of the PCB:s in said first plurality is connected to each of the switches in said second plurality. A longitudinal axis extends from the first end to the second end bisecting the assembly into a first assembly portion and a second assembly portion. The locking bore has an insertion bore portion which merges with a gripping bore portion. The optical detector converts the isolated one or more wavelengths of received electromagnetic radiation into an electrical signal which is transmitted to the digital signal processing system. The photoelectrons generated in the photoelectric conversion layer AA4 are outputted to the outside.