... a picture,our factory will know where is the problem,and then,send free parts free cost quickly.The ... led chip import from Taiwan Epistar(Red,Blue,White),OPTOTECH(IR) Item No. as bellowRed No. ES-SMBRPN42A(650~ ... 670nm) ES-SMHRPN42B(620~630nm) IR: ED-640IRS(730nm)Blue/White No.ES-CABLV45H(450~ ... chip/5watt(in the market no these), 850nm(IR) because Real IR 730nm much more expensive………