The Ltl Acorn stealth cameras pack quite a punch in their small form factor. Depending on the model they are either 12, 14 or 30 megapixel and full blacklight infrared 940nm. This means that not only will they take outstanding pictures and video during the day but will also do the same in total darkness. The 940nm (Blacklight) infrared LEDs are totally invisible to the naked eye and produce no light that the human eye can see. The 940nm infrared LEDs on the new 2021 range of Ltl Acorn cameras will illuminate up to 20+ meters (65ft) with a better spread of infrared light. For most surveillance purposes I would recommend the newer 5310A, 5610A or 6210PLUS model with the 940nm (blacklight) as the illumination and distance is excellent. Select a model from the Products menu for full details and specifications.