![]() ![]() It is the most commonly used circuit today for powering all kinds of low current devices, especially LED’s. The circuit give here is a very practical LED lamp circuit. Do not construct the circuit unless you are competent to handle high volt circuits. Important! Do not touch any points or trouble shoot when the circuit is connected to mains.Ĭaution This is an AC powered circuit and can give fatal shock if handled carelessly. If a reflector is provided behind the LEDs, it will give a flood light appearance. Enclose the circuit in a shock proof case. 20 LEDs are connected as a string to obtain luminance equal to 20W CFL. C1 can store more than 400 volts for many days if R1 is not connected. R1 is a must in the circuit to bleed the stored current from C1 when the circuit in unplugged. Zener diode ZD regulates DC to 69 volts and prevents excess reverse voltage across the LEDs during the negative half cycles. Schematic of the LED Flood Lights CircuitĬapacitor C2 act as a ripple remover and buffer. The low volt AC (around 100 volts) dropped by C1 is then rectified by a full wave rectifier formed of D1-D4. Xc = Vrms / I where Vrms is the input voltage and I is the current flowing through LEDs. The value of the AC capacitor can be calculated using the formula X c= 1/ (2 π f C) where, Xc is the reactance in ohms, C the capacitance in farads and f the mains frequency. This reduces power loss due to heat dissipation. The circuit uses capacitive reactance to drop high volt AC to low volt AC. ![]() When blue light strikes the phosphor, it emits white light. Related Products: LEDs and LED Lighting | Optical Lenses | LED Light Bars, Arrays and Bar Graphs White LED contains a blue chip with white inorganic Phosphor. White LEDs was introduced in 1990 which uses Indium Gallium Nitride (InGaN) as the semiconductor. High watt single white LED is also available. Different sizes like 3mm, 5mm and 10 mm varieties are now common. White LEDs are available as spot light and diffuse type versions. ![]() White LED emits 1000 to 6000 MCD light and easily works on 3 volts at 20 mA. Ultra white LEDs are now replacing the fluorescent lamps due to its energy saving property and simplicity of design. It is directly connected to AC lines to eliminate a bulk transformer. ![]() Its current consumption is practically nil but can provide light like a 20 watt CFL lamp. The circuit is too simple and energy saving design. The low energy floodlight is ideal for garden lighting projects, stables, workshops, large sheds, remote buildings, car parking, security areas, the list really is endless.This white LED flood lights illuminates your porch with cool white light. Ideal for a range of lighting requirements The compact design allows this light to be positioned in many areas where similar products are too large to fit. Very high quality 50 Watt LED chip provides a powerful Warm White light source, equivalent to a regular 300W halogen flood lamp. Led Flood Lighting has been proven in many studies to significantly prevent crime, whilst also being more environmentally friendly than halogen, helps you cut energy costs, and saves you money in the process too! LED Flood Light 50w - White 300 watt Equivalentīuy LED Flood Light 50w White, 300 Watt Mains Equivalent Led Floodlights, Weatherproof Toughened Glass, Best Prices, Great Reviews, Fast Free UK Delivery Fit Led Flood Lights and start Saving MoneyĪ rated low energy floodlights are ideal for a huge range of applications where extremely high levels of light are required, at a fraction of the running cost of standard halogen ![]()
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