LED’s (Light emitting diodes) are available in many different varieties. The purpose of this section is to highlight the common LED’s and some of the new options available in the market today.
- SMD (Surface Mounted Diode): offers high lumen output with low power consumption. These are generally small and positioned closely together. The objective is to provide light (large beam angle) and reduced heat (smaller heat sink). These are generally integrated into downlights and LED strip.
- 3528 SMD uses one LED per chip and the output is about 7 lumens per chip resulting in a smooth bright light with less heat. Generally used for accent lighting e.g. cabinet lighting, basic LED strip lighting etc.
- 5050 SMD also known as ‘tri chip’ has a 3-LED design chip, creating high-output LED light with three times’ the brightness of 3528 about 22 lumens per chip. Multi coloured 5050 are used in colour changing LED strip etc.
- 5630 SMD uses a rectangular shaped LED chip allowing greater outputs (up to 50 lumens per SMD chip). These are commonly used in hallways, stairs, deck lighting etc.
- Newer modules are always coming to the market such as 2835, 3020, 3030 and 3014 SMD’s which are even smaller with improved efficiency of heat and lumens.
- COB: Chip On Board LED’s are multiple LED’s (generally 9 or more) bounded together with a substrate to form a single module. COB LED’s are brighter, consume less power and result in a higher quality of light
- Tunable LED’s or Sunset Dimming: These LED Chips can change colour temperature when you dim them. Low dimming = low colour temperature i.e. 2,700K (appears warmer), High dimming (brightness) = high colour temperature i.e. 6,500K (appears brighter). These are now available in COB options. Historically to achieve multiple colours you needed to blend different colour temperature SMD LED chips.
- MCOB (Multiple Chips on Board): Multiple COB LED’s mounted to form a single chip. Used in LED bulbs and tubes.
- MCCOB (Multiple Chips and Cups on Board): These packages of LED Chips are used in high bay fixtures and floodlights.
- ETP FC (Flit-Chip): New technology that has the LED Chip mounted upside down. This offers greater heat dissipation, longer life, nearly zero decay and a smaller design for a more focused light beam and greater brightness.
- AC LED or Mains Voltage LED Chips: These are used when an LED driver is not required (effectively mains straight into the LED chip). The benefit of these is no driver is required resulting in a lower cost of production.
LED improvement is continuing. At Hugo Lighting we try to achieve the highest CRI (a measure of colour quality) possible with current technology, as the challenge is to keep light efficiency high along with CRI.