Back Focal Length in Optical Systems - which of the following is a characteristic of the lens
Acolyte lighting
The LED high bay lamp is highly efficient as it was designed to replace mercury vapor lamps or high pressure sodium lamps. Available in ranges of 250W and 400W, the light dispersion angle can be adjusted with reflectors.
PureEdge Lighting
LEDPrecise Electric Manufacturing Company LimitedLED STREET LIGHT LED street lights were designed to replace the original fluorescent road lamps. The lamp was designed to be lightweight, with sprayed aluminum which gives it the strength and good heat ventilation properties to protect the LED lights from damage.LED STREET LIGHT 20-40WDownload catalogPropertiesWe use high quality aluminum that is rust and corrosion proofGood light dispersionSaves more energy compared to conservative road lampsUsageRoads near residencesIndustrial estate roadsPublic parksBusiness areasSTREET LIGHT 40-300 WDownload catalogPropertiesThe LED module has an IP68 rating of being able to withstand water and dust (the highest level to withstand water and dust)The light dispersion was specially designed for lighting on the road and is suitable for every usage conditionThe lamp was specially designed to efficiently ventilate heatThe LED module can be easily changed, which can help save maintenance costsThe current driver has a water and dust withstand rate of IP66Additional accessories can be installed: NEMA receptacle and light sensorsUsageRoad lights (roads in communities, highways, tollways, etc.)Area lights (squares in the middles of cities, business areas, parking lots, footpaths and walkways, etc.)LED SOLAR STREET LIGHT SOLAR STREET LIGHT LED SYSTEMUsageLighting for roadsLighting for gates/doorsLighting for parking lotsLighting for footpaths and walkwaysLighting for farmsLighting for wild animal habitatsLighting for rural areasOthersDownload catalogLED HIGH BAY The LED high bay lamp is highly efficient as it was designed to replace mercury vapor lamps or high pressure sodium lamps. Available in ranges of 250W and 400W, the light dispersion angle can be adjusted with reflectors.Download catalogLED HIGH BAY 100W / 150W / 200WPropertiesLightweight and have soft, comfortable lightingLow dimming rateSuitable for installing with hanging chains and hooksUsageWarehousesExhibition hallsFactoriesGymnasiumsLED FLOOD/SPOT LIGHT Download catalogLED FLOOD/SPOT LIGHT 40-300 WPropertiesThe LED module has an IP68 rating of being able to withstand water and dust (the highest level to withstand water and dust)The light dispersion was specially designed to be used in sport arenas and stadiums, buildings, and area lightsThe lamp was specially designed to efficiently ventilate heatThe lamp can be rotated at its installation stand by ±360°UsageLighting in buildingsWarehousesFactoriesParking lotsLED BULB LED bulbs can light up immediately once the switch has been turned on. It is a wise replacement for the original incandescent light bulbs or lightbulbs with an E27 lamp base. LED bulbs can be used in spacious areas that require bright lighting. Moreover, as LED bulbs are free from mercury, they can be disposed as a non-harmful waste.Download catalogLED BULBPropertiesLightweight and have soft, comfortable lightingEasy to install and have a long usage life of up to 30,000 hoursMore energy saving compared to incandescent light bulbsFriendly towards the environmentUsageWarehousesOfficesFactoriesHotelsLED TUBE Download catalogLED TUBEPropertiesLightweight and have soft, comfortable lightingEasy to install and have a long usage life of up to 30,000 hoursCan save up to 50% of energy when compared to the fluorescent bulbFriendly towards the environmentUsageWarehousesFactoriesOfficesFor more information Buy now Line @
LED street lights were designed to replace the original fluorescent road lamps. The lamp was designed to be lightweight, with sprayed aluminum which gives it the strength and good heat ventilation properties to protect the LED lights from damage.
Coronetled
LED bulbs can light up immediately once the switch has been turned on. It is a wise replacement for the original incandescent light bulbs or lightbulbs with an E27 lamp base. LED bulbs can be used in spacious areas that require bright lighting. Moreover, as LED bulbs are free from mercury, they can be disposed as a non-harmful waste.