White LED Tape that uses the 3528 SMD Chip
The 3528 LED is a smaller SMD chip than those used on the 5050 LED strip SMD, its dimensions are 3.5mm x 2.8mm. The 3528 LED chip is mostly used in a LED tape of 60 LEDs per metre pulling 4.8w and at 12v (commonly known as 4.8w p/m or 5w p/m LED tape). At this quantity per metre of this SMD you will get a smooth, bright effect once shined onto a surface with a lumen output of around 330-360 lumens per metre (halogen 40w equivalent) depending on the colour. The colours available in the 3528 SMD are warm and cool white (all different Kelvins requirements can be made), red, green, blue, and amber. The most common type of applications for the 60 LED 3528 SMD LED tape is as feature lighting – such as plinth lighting, cove lighting, in homes, bars, restaurants and hotels etc.
Another LED tape using the 3528 SMD is the LED tape with 120 of these LEDs per metre pulling 9.6w (commonly known as 9.6w p/m or 10w p/m LED tape). It is available in the same colours although this is nowhere near as popular as the ‘standard’ 60 LED per metre type LED tape. The output would be exactly double as it is using double the amount of LEDs so around 660-720 lumens per metre depending on the colour. The applications for this LED tape would still be feature lighting but where there is more ambient light so a higher power than the 4.8w p/m is required.
Both of these LED tapes are available in an IP67 version. The cut points for the LED tapes would be 50mm for the 60 LED per metre type and 25mm for the 120 LED per metre type.
Used at either 60 or 120 LEDs per metre, 3528 SMDs do not give off a lot of heat (you can easily touch them with your hands). They require a minimum of an 8mm-wide PCB board, and for the 120 LEDs per metre version a 2-ounce thick PCB board. As long as the LED tape you’re using meets these specs, you can simply fit it anywhere as it will already have enough of a heat sink not to require an aluminium extrusion.
There are many brands of the 3528 SMDs. The high-quality branded Epistar SMD will give you the highest bright 3528 SMD’s on the market, as well as excellent colour consistency and reliability with 70% output at 50,000 hours. If you choose one of the cheaper alternatives you will get less brightness, as well as unreliability and colour inconsistencies within the reel and also between reels.