aquarium light on its own.
Calling the Kessil A150 LED a “spotlight” is a disservice to the novelty of its design and the technology
inside. The Kessil A150 is about the same size as a PAR 30
LED spotlight, but the similarities end there. An internal
cooling system allows the A150 to pack more than 30
watts of power into a tiny package, in no small part also
due to the use of the unique dense-matrix array LED.
Whereas a typical multi-chip has only one color of LED,
Kessil makes their own LED chip, which has an assortment of colors including white, blue, pink, and UV LEDs
in the dense-matrix array. The use of a common primary
lens over the dense-matrix array LED, coupled with a reflector, in the A150 helps to blend all of those colors and
to get an incredibly smooth distribution of light color
Many aquarists who have existing lighting setups over
their fish or reef tanks may choose to hold onto what
they have and start dabbling in LED striplights that can
fit neatly between metal halide pendants and T5 fluorescent tubes and fixtures. LED striplights can be loosely
divided into high-output and surface mount technology (SMT) LEDs. High-output LED striplights use the
typical 1-watt emitter with at least a primary lens, and
sometimes also a secondary lens or reflector, to further
guide the light. The LED striplights using SMT LEDs use a
form of lower-power LEDs that are spaced very closely to
achieve the desired lighting intensity, but these have no
primary lens—although they can be used with reflectors.