explain LED lamps?
A Light Emitting Diode lamp is a solid state lamp (SSL)
that uses light-emitting diodes (LEDs) as the source of
light. Since the light output of individual light-emitting
diodes is small compared to incandescent and compact
fluorescent lamps, multiple diodes are used together. LED
lamps can be made interchangeable with other types, but the
presently at a higher cost. Most LED lamps must also
include internal circuits to operate from standard AC
voltages. LED lamps offer long life and high efficiency,
but initial costs are higher than for flurorescent lamps.
Is This Answer Correct ? | 3 Yes | 0 No |
1.how many earth pits are required for 1000 k.w plant include substion , transformer ? 2. how many earth pits are required for 500kva generator.what is formula to calcute?
A logic circuit that provides a HIGH output if one input or the other input, but not both, is HIGH, is a(n)?
WHAT IS counter flux IN CT?
why effective resistance should be more than static resistance in transmission line?
WHAT IS MEAN BY MAGNETIC LOCKING
Why we apply 100ADC for contact resistance measurement?.If we apply AC what will happen
At what speed 1 HP motor can run an electric car of weighing 400 kg?
Determine the MVA rating of the power transformer given that 110/66 kV,1000 Amps. Folks how can i calculate the MVA rating with this Data??Plz Help........
What is the main difference b/t Earth leakage relay & Earth fault relay.I want protect my LT panel(Distribution Panels)which relay have to propose.......
what are the ''pitting rings''and how cn they be controlled in a series generator
What is the Relation b/w star delta starter , DOL starter and two speed starter. if we want to rotate a 20 kw fan in 2 speeds which type of two speed starter we have 2 use?
what is induction relay