Millet LED portable light enhanced version of the evaluation of dismantling

Last week, the millet mall quietly on the line of the LED lamp with an enhanced version of millet, enhance the function, the official price price of 19.9 yuan before the same is the same as that of the upgrade does not increase. The old version of millet portable lamp charging head is very popular in the network, many users love to do with it when taking pictures with light. An enhanced version of increased amount based on the old version, increase 50% brightness; also added a unique multi-stage switch, practical surge. So what is the actual use of it, the following to bring you the first out of the box, dismantling and evaluation.

First, millet LED portable light enhanced version of the box

At present, millet and millet Tmall flagship store has been the old version of the LED portable light shelf, while the current version of the enhanced version only blue and white two colors, do not rule out the possibility of the latter increase the supply of other colors.

Enhanced version of the same as the old version of the package, is a transparent plastic bag in a long strip.

The enhanced version of added amount, overall than the old version of some length, also some long packing.

Printed on the back of the package with a simple description, key switch brightness, there are five levels of brightness.

Remove packaging, front, light guide plate becomes longer, the neck has become longer, but also a button switch.

You can see the back of the heat sink has become longer.

Old and new two kinds of millet LED contrast, you can find a lot of light guide plate length, the overall contrast of about 30mm. The old version of the size: 169*18*9mm; Enhanced Edition size: 199*17*9mm.

On the back of the heat sink and the middle of the neck is also a little longer.

The button switch also has the function of switching brightness.

Under the same exposure parameters, the effect of two levels of brightness. The first level is too dim to be photographed. After communication with millet there engineer, said the other level of brightness is used as a night light, so set relatively low.

Under the same exposure parameters, the effect of three levels of brightness.

Under the same exposure parameters, the effect of four levels of brightness.

Under the same exposure parameters, the effect of five levels of brightness. The above is just a demonstration of the effect of different cameras and their parameters will lead to a large difference in the effect of the film.

Two, millet LED portable light enhanced version of dismantling

Remove the head of the rubber frame, the front can be seen a long piece of light guide plate, a whole block adopts matte material PC materials, and joined the white toner to the soft effect.

Can be seen on the back of a piece of silver aluminum alloy heat sink, heat dissipation around the heat sink holes, a total of 36 holes. Good heat dissipation can extend the service life of LED.

Light guide plate.

Aluminum alloy heat sink.

A total of 10 LED enhanced version of millet bead beads, said from PHILIPS (PHILPS) or OSRAM (OSRAM) the two largest supplier, the total power is 2.5W, the average of each power is 0.25W. The old version of the lamp 6, the overall power is 1.2W, the average of each power is 0.2W.

LED backplane is still aluminum alloy, enhance heat dissipation, extend the life of LED.

USB public head and buttons, you can see the structure of this place is very compact; in order to switch the button function, millet to find suppliers customized USB head.

USB head and button.

USB contact gold-plated feels good, enhance the contact surface conduction performance; the key mobile phone is commonly used in ultra-thin chip design, 39R0 resistor PCB here is to use a mix of millet mobile power, mobile power is small because current deadline, when the LED lamp when the minimum luminance current is relatively small, some mobile power will automatically close the dormant output; so will add up to keep the current load in the low brightness. PCB silk screen on the date of 20150925, millet can be seen in September this year, has started the development of LED enhanced version of the project.

This is the opposite of the circuit board integrated control and power management circuit of all, one figure on the screen printing number SKBFC components backlight boost IC, screen number M1002 53505 chip is MCU (SCM), do the dimming control purposes.

Three, millet LED portable light enhanced version of the test

Test instructions:

1 with the phone's light sensor as a luminance meter, APP software for Sensor sense;

2 all test LED lights are at the same height, the mobile phone light sensor is located in the middle of the LED lamp;

3 the absolute value of brightness does not have the reference value, but the relative value has the reference significance;

4 level of brightness of the phone can not be sensed, so can not test.

Millet LED portable light enhanced version two brightness, 69 Lux. Lux (Lux, legal symbol LX) illumination unit.

Millet LED portable light enhanced version three brightness, 365 Lux.

Millet LED portable light enhanced version four brightness, 1009 Lux.

Millet LED portable light enhanced version five brightness, 1589 Lux.

Millet LED portable old version, 884 Lux.

Millet enhanced version of two LED portable lamp brightness, 0.130A 5.084V, power 0.661W.

Millet enhanced version of three LED portable lamp brightness, 0.193A 5.074V, power 0.979W.

Millet enhanced version of four LED portable lamp brightness, 0.255A 5.069V, power 1.293W.