Related Clues

• Like some night vision
• Kind of lamp
• Like quartz heater radiation
• Radiation band
• Type of light
• Out-of-sight light
• Type of radiation just outside visible range
• Like some vision
• Certain rays
• Like some rays outside the visible spectrum
• Find out about exceptional radiation
• Kind of bulb in a heat lamp
• Fan drier (anag) - type of radiation
• Governing, managed to conceal source of riches - it's invisible
• An extreme case, where people don't normally see the light
• (Of radiation) with a longer wavelength than light
• Having longer than visible wavelength
• With a frequency between the red end of the visible spectrum and microwaves
• Rare find unfortunately can't be seen
• Between visible and microwave