... perfrmance for plant photosynthesis 3.Constant power output,with aluminum reflector 100% reflective 4.Full spectrum or dual spectrum ... glare, low-temperature start, wide voltage protection, electromagnetic interference with international EMC standards, advanced technology patch, quality stability guarantee ... days Packing:1pc/box,50 or 100pcs/carton with foam protective Payment:TT,LC,Wester union,paypal ...