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How many watts does a LED advertising light bead have?

2024-09-21 06:41:05
⓵How many watts does one LED lamp bead have?

Generally speaking, it is 0.5 to 1W

LED lamp beads have various specifications:

1. 0.06W, the voltage is 2.5-3.5V , the current is 20mA.

2. 0.5W, the voltage is 2.5-3.77V, the current is 150mA

3. 1W, the voltage is 2.79-3.99V, the current is 350mA

4. 3W, the voltage is 3.05-4.47V, the current is 700mA

5. 5W, the voltage is 3.16-4.88V, the current is 1000mA

Extended information:

Principle of Luminescence

The terminal voltage of the PN junction forms a certain potential barrier. When a forward bias voltage is applied, the potential barrier decreases, and most of the P and N regions carry current. Spre ad to each other. Since the electron mobility is much greater than the hole mobility, a large number of electrons will diffuse to the P region, constituting the injection of minority carriers into the P region. These electrons recombine with holes in the valence band, and the energy obtained during the recombination is released in the form of light energy. This is the principle of PN junction luminescence.

Lamp beads: the general brightness is 60-70lm; bulb lamp: the general brightness is 80-90lm.

1W red light, the brightness is generally 30-40lm; 1W green light, the brightness is generally 60-80lm; 1W yellow light, the brightness is generally 30-50lm; 1W blue light, the brightness is generally 20-30lm.

Note: 1W brightness is 60-110lm; 3W brightness can reach up to 240lm; 5W-300W is an integrated chip, packaged in series/parallel, mainly depends on the current, voltage, how many series and how many parallels.

LED lens: The primary lens is generally made of PMMA, PC, optical glass, silicone (soft silicone, hard silicone) and other materials. The larger the angle, the higher the light extraction efficiency. With a small-angle LED lens, the light must be emitted farther.

Reference link: Baidu Encyclopedia--LED lamp beads

⓶How many watts does an LED lamp bead have?

Common LED lamp bead powers include 1 watt, 3 watts, 5 watts, 7 watts, 9 watts, etc.

However, it should be noted that the actual power of LED lamp beads may be affected by factors such as supply current, voltage, and driving method, so the actual power may have a certain floating range.

Now there are higher power LED lamp beads on the market, such as 10 watt, 20 watt, 30 watt or even higher models. These high-power LED lamp beads are usually used for high-power lighting or special applications.

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