There are several types of usb type c rechargeable flashlight bulbs. What are the advantages and disadvantages? Please compare the bulbs. For example, I use two 26650 battery usb type c rechargeable flashlight bulbs. What are the advantages and disadvantages? Please compare the bulbs. For example, I use two usb type c rechargeable flashlights with 26650 batteries. Which type of bulb should be selected, that is, the brightness is suitable and durable.

There are several types of usb type c rechargeable flashlight bulbs. What are the advantages and disadvantages?

There are currently 3 types of usb type c rechargeable light bulbs, common filament type, helium and.

Needless to say, the only advantage is that the structure is simple, the drive is convenient, and the cost is low. The disadvantage is that the heat is large and the efficiency is low. Luminous efficiency 30~50LM/W

The brightness of xenon is high and the efficiency is good. The disadvantage is that the heat is large and the drive circuit is complicated. The price is also high. The luminous efficiency is 100~115LM/W.

The first two are all glass structures, and they are resistant to earthquakes. The overall efficiency is not high, and almost all have been eliminated.

The current mainstream flashlights are basically solid-state lighting, high reliability, long life, high efficiency, and simple driving. The light effect is generally 100LM/W or more, and the professional point of the flashlight is 150LM/W with CREE.

The general use of flashlights is CREE’s Q5 series, 3.2V3W. The price is close to the people, the brightness is good, and the efficiency is around 95~115LM/W. The next level is R series R5, 3.2V5W, 110~135LM/W. The next level is T series T6, 3.2V10W, 110~145LM/W.

How long can the two 26650s have to look at your lamp power, and the capacity/light power can be used to get the length of time.

The selection of the lamp is of course the higher the efficiency, the higher the efficiency, the smaller the heat, and the brighter the brightness at the same power.