COB LED modules offer higher brightness and lower power consumption than SMD types. They also have enhanced heat dissipation owing to the substrate used, which may be aluminum or ceramic. This thermal efficiency allows the tight mounting of chips while phosphor coating provides added protection from moisture, water, dust, UV rays and impacts. These advantages make them increasingly used in small-pitch LED displays, especially in P0.93, P1.25 and P1.56 types. Industry analysts say that COB technology will replace SMDs in this application.
In a report released by China Merchants Securities, shipments of COB LED modules increased by 2.5 times in P2.5 and below displays in the third quarter of 2023 over the same period in the previous year. This trend, expected to persist in the next two years, has been driving Chinese manufacturers’ R&D efforts toward small-pitch, high brightness and power COB LED modules.
Mainstream COB LED modules from Chinese suppliers bond multiple chips on round, square or rectangular substrates. These typically have 25 to 100W rated power, 4 to 42V rated voltage, 100 to 130 lm/W luminous efficacy, over 80Ra CRI and 2,000 to 10,000K color temperature. The choices in terms of emitted color are wide, with natural, cool and warm white, red, green, blue, yellow and orange the most common. These optoelectronic components suit indoor and outdoor lighting and displays. They are UL-listed, CE-approved and RoHS-compliant.
The components used in COB LED module production include LED chips, PCBs, bonding wires and adhesives are sourced from foreign and domestic companies. For LED chips, manufacturers usually turn to Cree, Philips, Samsung, Epistar, Osram, San’an, Silan, HC Semitek and Epilight.
LED chip costs went down in 2023 but may increase in the months ahead and impact prices.
COB LED module, full spectrum of colors
Company: Dongguan Lanjin Optoelectronics Co. Ltd
Dongguan Lanjin’s DSCOB-100W COB LED module emits a full spectrum of colors and has a luminous flux of 5,000 to 6,000 lumens and a beam angle of 140 degrees. It has 32 to 34V voltage and 3,500mA current ratings.
MOQ: 100 units
Lead time: 15 days
COB LED module, 130 lm/W luminous efficacy
Company: Dongguan Lanjin Optoelectronics Co. Ltd
The COB LED Module-011-1 from Dongguan Lanjin has 130 lm/W luminous efficacy and ≥80Ra CRI. Its voltage rating is 36 to 42V, current 650mA and power 25W.
MOQ: 1,000 units
Lead time: 7 days
COB LED module for lighting applications
Company: Shenzhen Chuhong Trading Co. Ltd
Shenzhen Chuhong markets this COB LED module for headlights, downlights and spotlights. Model BCL-06 has 2,700, 4,000 or 6,000K color temperature. It is available in rated power ratings of 5, 7, 12, 18, 24 and 30W respectively with rated 15 to 18VDC, 20 to 25VDC, 36 to 42VDC, 54 to 63VDC, 72 to 84VDC and 90 to 105VDC. The rated current is ≥300mA.
MOQ: 50 units
Lead time: 10 days
COB LED module with 120-degree beam angle
Company: Shenzhen Chuhong Trading Co. Ltd
The HPL-04 COB LED module from Shenzhen Chuhong is available in 730, 850 and 940nm variants for use in surveillance cameras, IR sensors and grow lights. It has a beam angle of 120 degrees and an effective range of 30 to 40m. The rated voltage and power levels are 4 to 7V and 10W, and 14 to 22V and 20, 30, 50 or 100W.
MOQ: 5 units
Lead time: 10 days
100 to 120-lumen COB LED module
Company: Zhongshan Golden Sun Optoelectronic Technology Co. Ltd
The JY-COB005-50W from Zhongshan Golden Sun is a COB LED module designed for floodlights. It delivers 100 to 120 lumens and has 3,000, 4,000, 5,000 or 6,000K color temperature. The rated power is 50W, rated voltage 30 to 34V and DC forward current 1,750mA.
MOQ: 1,000 units
Lead time: 7 days
COB LED module, 11,000 to 13,000 lumens
Company: Zhongshan Golden Sun Optoelectronic Technology Co. Ltd
Zhongshan Golden Sun’s JY-100W-11S30P COB LED module for floodlights has 11,000 to 13,000-lumen luminous flux and 5,500 to 6,000K color temperature. It has 100W rated power, 28 to 43V rated voltage and 2.8 to 3.5A rated current.
MOQ: 500 units
Lead time: 15 days
