Led bulb X-Flash 12 volt Bashny.Net

Led lamp manufacturers are numbering in the hundreds, but I often write about products of the two brands — Ikea and X-Flash. Ikea is the only brand offering on the Russian market of lamps with high rendering (CRI > 92), and even dimmable. X-Flash is the brand that first brought to Russia all the Chinese news.

Recently, X-Flash, there is another kind of led products, which no one of the brands represented on the Russian market. This led light bulb with standard lamp caps E27 and E14, with working voltage of 12 volts.



12-volt lights it is not mass production. They do not need the usual customers who buy lights for apartments. But anyone who uses the Autonomous power supply system (solar panels, wind turbines, batteries), such lamps are very useful. They will be useful to tourists and motorists for use in carriers are connected to the onboard network of the car, the owners of garages where there is no electricity or it is often turned off. Of course, in all these cases, you can use regular bulbs on 230 volts connected to a voltage source of 12 volts through the inverter, but use 12-volt lamps can save energy and simplify the design.

X-Flash introduced a range of eight dvenadcatiletnih lamps with conventional bases:

E14 5W warm light 3000K and neutral 4000K
E27 5W 3000K / 4000K
E27 8W 3000K / 4000K
E27 12W 3000K / 4000K

Lamp with 5 watt released in the format bulb G45, lamp 8, and 12 W are in the form of a conventional "pear" A60. All lights work from DC and AC voltage.
 



In my possession were seven of the eight new lamps.

I measured the parameters of lamps with instruments Viso LightSpion, UPRtek MK350D, THD-2, Lamptest-1, Aneng AN8001, Suntek TDGC2-0.5, T-44, PS-1502DD, Calm Instab 500.





All bulbs produce quality light ripple when supplied with alternating voltage they have no or very low, and the color rendering index of 82-85 is that allows to recommend them for illumination of premises.

5-watt bulb actually give by 7 to 18% more light than the manufacturer promised.

The actual power 8-watt lamps were at the level of 7.2 — 7.3 W and the light they give 8-10% less than promised, but it fits into the requirements of GOST R 54815-2011, according to which the measured initial luminous flux of led lamps should be not less than 90% of the rated luminous flux.

Though the actual power of the 12-watt lamps and below the stated (10.3-10.5 W), they give 9-10% more light than the manufacturer promised.

I measured the minimum voltage at which lamps operate reliably and provide at least 90% of the initial luminous flux.





For AC and DC voltage measured values were different and a problem was identified with a driver from the 5-watt lamps with socket E27. To the rated DC voltage of 12 volts, these lamps burn "dimly", and at full brightness they burn at a voltage of not lower than 13.2 V. For AC voltage 12 volt lamps are lit normally, but at 11.3 To reduce the brightness to 90%. Apparently, the factory got confused and put these lamp drivers 12, and 15 volts.

The 5 watt bulb with E14 base behaves quite differently. It surely works by reducing the DC voltage to 10 V and up to 9.5 V. the AC for Sure, just behaves her twin sister with a neutral light 4000K.

8-watt lamp on AC voltage work if the voltage drops to 9 volts, and for DC to 6.9, and the brightness in the range of 6.9-12 is not changed, further reducing the voltage abruptly decreases.

12-wattie lamp for AC and DC voltage behave almost identically, and operate reliably at the reduction of the voltage to 9.1 V.

For use with a supply of constant voltage of 12 volts will fit all tested lamps besides lamps E27 5W, instead of which you can use 5W E14.

These 12-volt lights are not "foolproof" in the form of special base, not giving to screw them in instead of ordinary bulbs and get fireworks when included in the network, but to use them for other purposes will not have to look for special ammo.

As for all the rest of their lamps, X-Flash says very long life — 50,000 hours and gives a guarantee of 5 years. Lamps are sold in your own online store manufacturer, so with the exchange in the case of bulb failure problems should not be. published

 

P. S. And remember, only by changing their consumption — together we change the world! ©

Source: geektimes.ru/company/lamptest/blog/286764/