Q:The LED lamp and built-in ballast which good

LED to shoot the light is better than with ballast lamp. LED to shoot the light small power consumption, high brightness, long life, less heat, its driver USES the way ChengHeng current source power supply switch power supply, small volume, high efficiency, low noise, is a new energy-saving products. And built-in ballast product, are generally not fluorescent lamp, most use inductive ballast (now also has a switch power is applied to make ballast, but the volume is bigger than the LED constant current source), ballast itself than switch power supply, power consumption is easy to produce power supply hum. Lights glowing on the filament heating, heat.

Q:The ceiling of a ceiling light is of general size

And the size of the wattage for the 70 w lamp also has two kinds, one is opening, width is 205 * 110, height is 205 a; The other is 180 * 137 opening, width, height of 220. Then there is the lamp wattage for Max300W, the size of openings and width 150 * 287, 391. Then there is the lamp wattage for Max300W, the size of openings and width 150 * 287, 391. And Max120W shoots the size of openings, 130 * 220, wide and high is 309. The size of the lamp for 35 w generally has two kinds: the first is a opening, width is 205 * 90, the size of the high of 170. Usually shoot the lamp to the size of holes to 45 mm, 50 mm, 55 mm, 60 mm, 65 mm and 70 mm, 75 mm and 80 mm, 90 mm and 100 mm.

Q:Sitting room condole top round with tube lamp or LED lamp good?

Around the ceiling? The lamp is uniform or around the focus, if it is for certain part emphasized by ordinary halogen light cup, more can a rendering;

Q:How many W LED lamp can replace 50 W halogen lamp?

Usually leds efficiency 2-3 times that of halogen lamp, then according to this number is 18 to 25 w leds can replace.

Q:LEDPAR lamp, LED lamp, LED downlight, users don't, the usefulness of various lamps and lanterns?

LED is not hot Ordinary fever Led energy saving transformer occupy a space more concentrated light In a certain range is not very bright

Q:Home use shoot the lamp to general how many watts is the best?

Ordinary household 3 w - 10 w are common. Ordinary quartz lamp cup 50 w LED lamp has 20 w 35 w A watt.

Q:The difference between the LED downlight and LED lamp

Tube light is not good to adjust light downier light shoot the lamp to be hit out of the scope of the irradiation can see the light You can adjust the irradiation Angle

Q:The LED lamp which cheap compared with bovine eye lamp

LED to shoot the light points of smallpox lamp and lamp cup shoots the light, bovine eye lamp, of course, more expensive than the LED ceiling lamp, because the bovine eye lamp shell of a price in more than 8, and ceiling lamp shell a 5 pieces more, single housing price have sent a few pieces

Q:What do you need for homemade LED lights

：Can be accomplished within 15 meters of LED irradiation, 50-100 meters even traditional project-light lamp all cannot do it

Q:LED to shoot the light, heat sink, aluminum alloy profiles and die casting aluminum radiator which is better?

Even better aluminum profile, material, wall thickness can be thinner, heat dissipation performance is better..