Name: China 0.5W 1W 730nm 740nm 2835 SMD LED Chip Manufacturers, Suppliers - Factory Direct Price - Guangmai Technology
Brand: GMKJ
SKU: 285213605

0.5W 1W 730nm 740nm 2835 SMD LED Chip Specs

Product name	0.5W 1W 730nm 740nm 2835 SMD LED Chip
Part number	GC-2835R730-1CC-L100
Chips brand	Taiwan Epileds chips
Manufacturer brand on Label	GMKJ LEDs, TOP 100 LED Diode Manufacturer in China since 2013 Manufactured by Guangmai Technology Co., Ltd in Shenzhen China
Input	1.8-2.2vdc, IFmax 150mA
Luminous/ Radiant Flux	100-150mW with 150mA IF
Lighting Efficiency	Far red LED has no LM/W recorded, most of the light turns into invisiable infrared radiation power
Wavelength/Color	Far red 730-740nm
Power	0.5 Watt PS: If you need any other power rated 730-740nm 2835 smd leds, you can contact with us too: 0.2 Watt 60mA and 1 Watt 300mA 2835 smd leds are also available here.
Package material	PCT 2835 smd leds, big pads anode/positive +
Lighting angle	120 degree lighting angle
Price	Please contact with GMKJ for the price and more details
Min order quantity	Depends on the stock availablity: If we have ready to ship stock, then even 100 pcs with samples test purpose is acceptable here. If no stock, then we need min order quantity with at least 20,000 pcs.
Warranty	4 years
OEM service	1. SKD parts available; 2. Customised LED array with the size you need is OK here.

GMKJ 2835 SMD LED full series Picture

2835 white color smd leds, like 2700K-6500K, CRI>80

Power available: 0.2W,0.5W, 1W

Voltage input available: 3Vdc, 6vdc, 9vdc, 18vdc and 36vdc

2835 IR smd leds, like 730nm, 810nm, 830nm, 850nm, 940nm or SWIR 1000-1650nm

2835 smd leds color type, like UV 365-410nm, Blue 420-480nm, green 500-530nm, amber color 590n, red color 620-630nm, deep red 660nm...

730nm 740nm 2835 smd led 4

730nm 740nm 2835 smd led 1

Aluminum LED PCBA Assembled by GMKJ (PCB drawing and BOM provided by our clients)

12-24vdc uv led module 5

IR floodlight 730nm led board-7

0.5W 1W 730nm 740nm 2835 SMD LED Chip Dimension

2835 730nm smd leds diodes

Please attention: the big pad is for anode +!

0.5W 1W 730nm 740nm 2835 SMD LED Chip Electrical Specs

Parameter	Symbol	Conditions	Min	Avg.	Max	Units
Forward Voltage (正向压降)	V_F	I_F=150mA	1.80	--	2.40	V
Radiant Flux 光功率	Φe	I_F=150mA	100		150	mW
Peak wavelength 峰值波长	λp	I_F=150mA	730		740	nm
Temperature Coefficient of Forward Voltage (正向压降之温度系数)	∆V_F/∆T	I_F=150mA	−−	-2	−−	mV/°C
Reverse Current (反向漏电流)	I_R	V_R=5V	−−	−−	10	μ A
Thermal Resistance Junction To Soldering Pad (热阻)	RΘ_J-_S	I_F=150mA	--	8	--	°C/W
Viewing Angle^[1] (发光角度)	2Θ_1/2	I_F=150mA	−−	120	−−	Deg

Why 730-740nm is very important for the LED plant growth lights?

The 730–740 nm wavelength (often called far-red light) plays a crucial physiological role in plant growth and flowering. Here's a detailed explanation you can use in product training, marketing, or customer discussions 👇

💡 1. What Is 730–740 nm Light?

This range is far-red light, just beyond visible red (around 660 nm).
Plants perceive it through a pigment system called phytochrome, which exists in two forms:

Pr (inactive) - absorbs red light (~660 nm)

Pfr (active) - absorbs far-red light (~730 nm)

These two forms convert back and forth depending on the light spectrum - acting like a biological switch that controls plant behavior.

🌿 2. Why 730–740 nm Is Important for Plants

Function	Role of 730–740 nm	Effect on Plants
Photomorphogenesis	Converts the active Pfr back to Pr	Influences plant shape, elongation, and shade response
Flowering Induction	Affects the day/night signal (phytochrome ratio)	Promotes flowering in long-day plants, helps control flowering timing
Shade Avoidance Response	High far-red mimics shaded environments	Stimulates stem elongation and leaf expansion
Canopy Penetration	Longer wavelength penetrates deeper into leaves	Enhances photosynthetic efficiency in lower leaves
End-of-Day (EOD) Treatment	Short pulse of 730 nm after lights off	Helps control flowering and reduce excessive compactness

⚙️ 3. In LED Plant Lights

A combination of 660 nm (deep red) and 730 nm (far-red) gives better photosynthetic efficiency and growth control.

Known as the Emerson Effect - when red and far-red light act together, photosynthesis rate increases beyond the sum of each alone.

🌻 4. Typical Applications

Flowering control (e.g., tomatoes, cannabis, strawberries)

Stem elongation / leaf expansion tuning

End-of-day far-red (EOD-FR) treatments

Full-spectrum horticultural lighting (660 nm + 730 nm mix)

led grow light pics

✅ Summary

Aspect	660 nm (Red)	730–740 nm (Far-Red)
Photosynthesis	High efficiency	Synergistic boost with 660 nm
Growth effect	Promotes biomass and flowering	Controls morphology and flowering timing
Light color	Bright red	Deep dark red (almost invisible)

👉 In short:
730–740 nm far-red light is essential for regulating plant development, flowering, and improving light balance in full-spectrum grow LEDs.