The Russian company Varton (brands Varton and Gauss) produces many different lamps at its plant in the city of Bogoroditsk, Tula region. I tested two luminaires of the standard "office" format 600x600 mm, one of which can work "without electricity" for up to an hour.
Gauss MiR (Made in Russia) luminaires are intended for use in offices, shopping centers, educational institutions and municipal facilities. Versions with an emergency power supply unit allow organizing evacuation lighting without additional lamps.
These luminaires are equipped with high-quality IC-drivers that ensure operation at reduced mains voltage without reducing brightness, no ripple and a very high power factor. LEDs with a color rendering index of more than 80 and an efficiency of more than 100 lm / W are used in the luminaire.
The LED strips are fixed on a metal case, due to which heat is well dissipated from them and the LEDs will last a long time (the manufacturer gives a three-year warranty). Such a housing allows both built-in and surface-mounted installation.
Luminaires are produced with two types of diffuser - matt and "prism". Luminaires with a prism diffuser provide 17% more light.
There are eight models of lamps in the series, this is a combination of combinations of three parameters: color temperature (4000K or 6500K), type of diffuser (matte, prism), availability of a backup power source.
I tested two luminaires: G1-A0-00070-01G02-2003540 (matt, 4000K) and G1-A0-00070-01GA3-2003565 (prism, 6500K, backup power).
The luminaires are mounted on the ceiling and connected, and then the diffuser is inserted into them and a corner is placed, fixed with two plastic rivets.
The lamp is assembled efficiently and accurately.
Driver and LED line.
The luminaire with a backup power source additionally has an autonomous power supply unit and a battery pack with LiFePO4 3.2 V 1.5 Ah cells in 18650 format.
The set includes a backup power test button and an LED showing the battery performance.
When the main power is turned off, the luminaire with a backup source reduces brightness by six times and can work for an hour. Such a lamp is connected with three wires: zero, phase directly and phase through the switch.
Results of my tests:
The measured parameters are fully consistent with the declared ones. The 4000K luminaire with a matt diffuser gives 2971 lm of light, the 6500K luminaire with a 3480 lm prism diffuser. CRI (Ra) 81-82, practically no ripple, PF 0.96-0.97. The minimum voltage at which the luminaires work without dimming is 160 volts. Luminaires work correctly with switches that have an indicator.
Luminous flux, color temperature and color rendering index were measured using a two-meter integrating sphere and an Instrument Systems CAS 140 CT spectrometer, power consumption and power factor (Power Factor) with a Robiton PM2 instrument, ripple coefficient with an Uprtek MK350D instrument. The minimum voltage level at which the luminous flux decreased by no more than 5% of the nominal was measured using a Lamptest-1 device and a LATR Suntek TDGC2-0.5.
Gauss MiR without a backup power supply costs 1,485 rubles, with a backup power supply - 4199 rubles.
Luminaires, in which all the measured parameters exactly correspond to the declared ones, are rare. I am glad that there are more and more such lamps and lamps, and I am also glad that these lamps are produced in Russia.
PS Five years ago I visited the Warton plant in Bogoroditsk and shot this video.
Modern video factory
© 2020 Alex Nadozhin