... ,ozone 1. Advantages of our UV LED Curing System VS mercury arc lamp:(1) No IR, cool cure, no thermal distortion: ... Spectrum bandwidth: +- 5 nm3. LED Heads(Light Guide):The controller UVEC-4II can control 1 to 4 LED LED Heads.4. Spot diameter and ... voltage: 110 - 240VAC (50/60HZ) Material: Aluminumaccessories: Operating Manual, Key, Cables, Power supply, Foot switch, Safety glasses7. Shelf life: 1 ...