Mini portable UV led LED UV spot curing LED UV torch Dia: 3,4,5,6,7, ... ,9,10,15,20mm Mini portable UV led LED UV spot curingLED UV torchDia: 3,4,5,6,7,8,9 ... ,15,20mmMini Torch LED curing light.UV mainwave length: 365nmLED lamp light lifetime: 20000hoursDia of LED UV spot light: 2/3/4/5/6 ...