Products related to LED:
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LED Lenser PTT Police LED Torch Black
Ledlenser’s expert track record in hi-tech police torches has paved the way for the twist-focus classic - the Police Tac Torch (PTT). This small-bodied, tactical-style hand torch has been specially designed to meet the needs of emergency teams, security firms and rapid response units all over the world. It has deeper diamond-shaped knurling on the barrel for improved grip with or without gloves, a fast-action Dynamic Switch with a choice of Power or Low Power light settings, and a removable anti-roll protector at one end for extra stability. At the other end an almighty powerful premium LED light chip will generate up to 280 lumens, enough to reach up to 220 metres distance away. The maximum burn time is 25 hours. Ledlenser’s legendary twist-focus is retained, complementing the patented Advanced Focusing Optics for superior quality light consistency all the way through from flood to spot. The PTT also features Ledlenser’s near-indestructible aircraft-grade aluminium body and gold-plated internal battery contacts for optimum conductivity and corrosion-resistance. 7-year with registration warranty for complete peace of mind. Supplied with wrist strap. roll protection and batteries (3 x AAA). Specification: Power: 280/25 lumensRun Time: 4/25 hoursBeam Distance: 220/80mIP Rating: IPX4Size: 116 x Ø26mmWeight: 132g 7-year with registration warranty.1 x Ledlenser PTT Police Tac Torch LED (Gift Boxed)Additional Information:Battery Type: AAA CellMax. Lumen Output: 280Battery Supplied: Yes
Price: 52.95 € | Shipping*: 4.95 € -
Led Tealights
Set of 12 battery operated tea lights. Light flickers to imitate a real candle. Battery supplied lasts for 40-60 hours. Diameter 38mm, overall height 38mm. Will fit in a standard tea light holder.
Price: 15.55 £ | Shipping*: 7.19 £ -
LED Lenser P2R CORE Rechargeable LED Torch Black
The P2R CORE is a compact pocket clip rechargeable torch which is 103mm in length. It features LED Lenser's Advanced Focus System and can deliver a beam of up to 120 lumens. Packaged in a durable, IP54 rated housing, it is also extremely lightweight at just 36g so you won't even notice you're carrying it. Specifications • Brightness: 15 lumens - 120 lumens • Beam Distance: 15 metres - 65 metres • Runtime: 0.5 hours - 5 hours • IP Rating: IP54 • Battery: Rechargeable 10440 Lithium Ion • Length: 103mm • Head Diameter: 15mm • Weight: 36g Features & Benefits • Compact rechargeable hand torch • Weighs just 36g • Pocket clip • AFS Advanced Focus System • IP54 rated housing • Battery can run for up to 5 hours on one charge • Includes USB charging cable Contents • P2R CORE Rechargeable Hand Torch • Pocket Clip • USB Charging Cable
Price: 27.95 € | Shipping*: 4.95 € -
LED Lenser P4R CORE Rechargeable LED Torch Black
The torches in LED Lenser's Core line form the heart of the new P series and H series. They follow the great legacy of the famous P and H series torches before them and in doing so, combine a proven and tested history with new technology. Core lights are ideally suitable for a wide range of applications for everyday or professional use, and are distinguished by an excellent price to performance ratio. The P4R CORE is a compact rechargeable pen torch with a detachable pocket clip. Measuring 150mm in length, it has three power settings and also features LED Lenser's Advanced Focus System for focussing the beam between a narrow spot light and a wide flood light. Specifications • LED Configuration: 1x Power LED • Light Functions: Power / Mid Power / Low Power • Luminous Flux: 200 / 90 / 15 lumens • Beam Distance: 90 / 60 / 15 metres • Run Time: 1.5 / 3 / 25 hours • Colour Temperature: 6000 - 7500 K • Colour Rendering Index: 70 CRI • Battery: 1 x 3.7v Li-ion Battery • Battery Capacity: 2.22 Wh / 600 mAh • IP Rating: IP54 • Rechargeable: Yes • Charging Time: 150 mins • Drop Height: 2 metres • Length (defocussed): 150mm • Head Diameter: 15mm • Weight (including battery): 55g Features & Benefits • Compact recharegable pen torch • Three power settings • Delivers 200 lumens at full power • Can run for up to 25 hours on low power • IP54 rated housing • Pocket clip • Advanced focus system for stepless focussing • Includes USB charging cable Contents • P4R CORE Rechargeable Pen Torch • Rechargeable Battery • USB Charging Cable • Pocket Clip
Price: 40.95 € | Shipping*: 4.95 €
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What is an LED lamp with energy efficiency class F?
An LED lamp with energy efficiency class F is a type of LED lamp that has a lower energy efficiency rating compared to other LED lamps. This means that it consumes more energy to produce the same amount of light, resulting in higher energy costs. It is important to consider the energy efficiency class when purchasing LED lamps to ensure that you are choosing a more energy-efficient option that will help save on energy consumption and costs.
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Why doesn't Apple use Mini-LED technology in their products?
Apple has not yet adopted Mini-LED technology in their products due to concerns about production yield rates and cost. Mini-LED displays require a large number of tiny LEDs, which can be challenging to manufacture at scale with high yield rates. Additionally, the cost of Mini-LED technology is currently higher than traditional LED or OLED displays, which may not align with Apple's pricing strategy for their products. However, as the technology continues to mature and production costs decrease, it is possible that Apple may consider integrating Mini-LED displays into their future products.
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Does LED lamps require an LED driver transformer?
Yes, LED lamps do require an LED driver transformer. LED driver transformers are necessary to regulate the voltage and current supplied to the LED lamps, ensuring that they operate efficiently and safely. The LED driver transformer also helps to protect the LED lamps from voltage fluctuations and power surges, extending their lifespan. Therefore, it is important to use the appropriate LED driver transformer for the specific LED lamps being used.
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Do LED lamps need an LED driver transformer?
Yes, LED lamps typically require an LED driver transformer to regulate the voltage and current supplied to the LED chips. The LED driver transformer converts the incoming voltage to the appropriate level needed for the LED to function properly. It also helps protect the LED from voltage fluctuations and ensures a consistent and stable light output.
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LED Lenser P7R CORE Rechargeable LED Torch Black
The torches in LED Lenser's Core line form the heart of the new P series and H series. They follow the great legacy of the famous P and H series torches before them and in doing so, combine a proven and tested history with new technology. Core lights are ideally suitable for a wide range of applications for everyday or professional use, and are distinguished by an excellent price to performance ratio. The P7R CORE is a rechargeable hand torch with an integrated battery and charge display so you'll always know how much charge you've got left in the battery. It uses a magnetic charging system for improved durability and reliability; additionally the IP68 rated housing with Flex Sealing technology has excellent dust and water resistance, and enables the torch to be used for short periods underwater, at a depth of up to 1 metre . The P7R CORE can supply a beam of up to 1400 lumens. It provides constant, flicker-free light which can be focussed using LED Lenser's Advanced Focus System. Specifications • Maximum Brightness: 1400 lumens • Maximum Range: 300 metres • Maximum Runtime: 90 hours Features & Benefits • Multi-Core Optics • Homogeneous beam made possible by special faceting of the lens • Advanced Focus System for stepless focusing • Extreme dust and water protection (IP68) • Flex Sealing Technology for water resistance • Can be used for a short time at depths of up to 1 metre underwater • Personalize the light functions thanks to Smart Light Technology • Constant Light – consistent level of brightness over time • Flicker-free light: suitable for illuminating fast-moving parts and machines • Magnetic Charge System • Integrated battery and charge status display Contents • P7R CORE Rechargeable Torch • Battery Pack • Lanyard • Magnetic Charging Cable
Price: 100.95 € | Shipping*: 4.95 € -
LED Lenser H5R CORE Rechargeable LED Head Torch Black
The H5R CORE is a compact head torch which is powered by a rechargeable battery. The beam features LED Lenser's Advanced Focus System for adjusting it between a spot and flood light, and it will go up to 500 lumens in Boost mode. In low power mode (15 lumens) it can run for up to 50 hours before it needs recharging. The H5R CORE uses a magnetic charging cable for improved reliability and durability. Specifications • Lumens (Boost mode): 500 lumens • Lumens (Power mode): 300 lumens • Lumens (Low Power mode): 15 lumens • Beam Distance (Boost mode): 200 metres • Beam Distance (Power mode): 150 metres • Beam Distance (Low Power mode): 30 metres • Runtime: Max 50 hours, Min 2 hours • Battery: Lithium Polymer • IP Rating: IP67 • Weight: 167g Features & Benefits • Compact, lightweight head torch • Three power settings • Advanced Focus System for transition between a narrow spot light or wide flood light • Flex Sealing Technologoy for protection against dust and water ingress • Boost mode can deliver a 500 lumen beam at up to 200 metres • Rechargeable battery • Durable and long lasting magnetic charging cable Contents • H5R CORE Rechargeable Head Torch • Battery Pack • Magnetic Charging Cable
Price: 75.95 € | Shipping*: 4.95 € -
LED Lenser H7R CORE Rechargeable LED Head Torch Black
LED Lenser's CORE head torches are the foundation of the H-series. They can be operated intuitively and offer stepless dimming via the wheel switch on the torch head. In addition, the LEDs provide an improved constant luminous flux so that the selected brightness can be maintained over a long period of time. Thanks to the Flex Sealing Technology, all models achieve extreme dust and water protection. These and many other features as well as the extensive range of accessories that can be used universally with the LED Lenser Connecting System, make these models ideal all-rounders for a variety of uses and activities. The H7R CORE fits securely onto the head and can deliver a powerful 1000 lumen beam when required. Additionally its watertight construction makes it a robust and reliable choice which is ideal for active outdoor environments. It has a rechargeable battery which is charged via a magnetic cable. The battery can run for up to 65 hours in low power mode and can be fully recharged in under 4 hours. Specifications • Lumens (Boost mode): 1000 lumens • Lumens (Power mode): 600 lumens • Lumens (Low Power mode): 15 lumens • Beam Distance (Boost mode): 250 metres • Beam Distance (Power mode): 200 metres • Beam Distance (Low Power mode): 25 metres • Runtime: Max 65 hours, Min 4 hours • Battery: Rechargeable 21700 Lithium Ion • IP Rating: IP67 • Weight: 259g Contents • H7R CORE Rechargeable Head Torch • Battery Pack • Magnetic Charging Cable
Price: 84.95 € | Shipping*: 4.95 € -
LED Lenser H15R CORE Rechargeable LED Head Torch Black
The torches in LED Lenser's Core line form the heart of the new P series and H series. They follow the great legacy of the famous P and H series torches before them and in doing so, combine a proven and tested history with new technology. Core lights are ideally suitable for a wide range of applications for everyday or professional use, and are distinguished by an excellent price to performance ratio. The H15R CORE is a rechargeable head torch which is capable of delivering a 2500 lumen beam in Boost mode (for a short time only). In the standard power mode it runs at 1000 lumens or switching to low power transmits a 20 lumen beam and enables the battery to run for up to 80 hours on a single charge. Specifications • LED Configuration: 1 x Xtreme LED • Light Functions: Boost / Power / Low Power • Luminous Flux: 2500 / 1000 / 20 lumens • Beam Distance: 250 / 170 / 20 metres • Run Time: - / 5 / 80 hours • Colour temperature (K): 6000 – 7500 • Colour rendering index (CRI): 70 • Battery: 1x Li-ion Batterypack 7.4V • Battery Capacity: 35.52 Wh / 4800 mAh • IP Level: IP67 • Charging Time: 330 mins • Drop Height: 1.5 metres • Head Diameter: 47mm • Weight: 380g Features & Benefits • Intuitive operation and stepless dimming thanks to the wheel switch on the torch head • Strong dust and water protection (IP67) • Stepless swivel mechanism • Advanced Focus System – stepless focusing • Convenient and safe charging of the battery thanks to the Magnetic Charge System • Integrated battery and charge status display Contents • H15R CORE Head Torch • Rechargeable Battery • Magnetic Charging Cable
Price: 159.95 € | Shipping*: 4.95 €
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How is the transition of energy efficiency classes from halogen to LED carried out?
The transition from halogen to LED energy efficiency classes is carried out through a combination of consumer education, government regulations, and market forces. Consumers are educated about the benefits of LED lighting, such as lower energy consumption and longer lifespan, which encourages them to make the switch. Government regulations may also play a role by setting energy efficiency standards and phasing out less efficient lighting options. Additionally, market forces such as the availability of a wide range of LED lighting products and decreasing costs also contribute to the transition. Overall, the transition is a gradual process driven by a combination of factors that ultimately lead to the adoption of more energy-efficient LED lighting.
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Why does a 5 watt LED reflector only have an energy efficiency of g?
A 5 watt LED reflector may have a lower energy efficiency than expected due to factors such as the quality of the LED chips, the design of the reflector, and the efficiency of the driver circuit. If the LED chips are of lower quality, they may not convert as much electrical energy into light, reducing the overall energy efficiency. Additionally, if the reflector is not designed to effectively direct and focus the light, there may be more energy wasted as scattered or unused light. Finally, if the driver circuit is not optimized for energy efficiency, it can contribute to overall lower energy efficiency of the LED reflector.
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Is the LED strip or the LED controller broken?
To determine whether the LED strip or the LED controller is broken, you can try troubleshooting the issue by testing each component separately. First, try connecting a different LED strip to the controller to see if it lights up. If the new strip works, then the original LED strip may be broken. If the new strip does not light up, then the issue may be with the LED controller. Additionally, check for any loose connections or damaged wires that could be causing the problem.
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Should I use RAM with LED or without LED?
The decision to use RAM with LED or without LED depends on personal preference and the overall aesthetic of your computer setup. RAM with LED can add a visually appealing element to your build and create a more vibrant and eye-catching look. However, if you prefer a more minimalistic or understated design, RAM without LED may be a better choice. Ultimately, the decision should be based on your personal style and the overall look you want to achieve for your computer.
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