Tunnel lights 1.As there are no filament and electrodes in light bulb of high-frequency electrodeless lamps, and it is working by high-frequency electromagnetic coupling, its service life reaches 60,000 hours, 20 times that of fluorescent lamp, 12 times that of metal halide lamp and high-pressure sodium lamp, while the average light failure for high-frequency electrodeless lamp is <5%. 2.With high luminous efficiency ≥ 70Lm/w.100w, electrodeless lamp brightness is equivalent to 600w incandescent lamp, 60 times that of the latter;generally 85W electrodeless lamp ≈ 170W metal halide lamp ≈ 250W high pressure sodium lamp ≈ 500W incandescent lamp; its energy conservation is more than incandescent lamp by 80% and than high-pressure sodium lamp by 60%. 3.As it uses solid mercury, it will not pollute the environment even though it breaks and be re-covered by more than 99%, as a real green and environmentally friendly light source; 99.6 percent of other materials of electrodeless lamp can be recycled, in particular, satisfying the environmental protection needs. 4.High power factor, cosΦ ≥ 0.98, low current harmonic, constant voltage power supply, constant luminous flux output, its power ≤ 0.02, input power ≈ output power. 5.With color-rendering index of 80 or more and high proportion of vicible light, among the light it emits, proportion of visible light is more than 80% with good visual effects and soft light color, close to natural sunlight, and able to reflect natural color of reflected objects; 27500k-6500k color temperature is for options, and made into multicolor which meets the color requirements, harmonize better with lighting environment atmosphere and satisfy the lighting requirements on different occasions. 6.It has passed comprehensive National EMC tests and EU CE certifying that it is free from electromagnetic pollution. 7.It may be installed in any position without any limitaion; with no electrode, it will not be limited to frequent on-off, and designed to meet the needs of different lighting with high shock resistance. 8.It is available t both AC and DC power, and direct solar power lighting.