Campus corridor LED full spectrum clean light

Q: What color rendering index is sufficient for classroom lights?

This HUMUBAO classroom light has a color rendering index of ≥92, a special color rendering index R9 of ≥60, and a color fidelity of ≥90, which can effectively restore the true colors of textbooks and objects.

Q: Is the blue light hazard of campus corridor lights significant?

No, the blue light hazard rating of this light is Rg0 (exempt group), with no flicker hazard and no significant impact, meeting the relevant requirements of IEEE Std 1789-2015.

Q: What should the UGR glare value for classroom lighting be lower than?

For classroom lighting, the Unified Glare Rating (UGR) must be less than 16. This HUMUBAO ceiling light has a measured UGR<16, meeting the requirements of standards such as GB 7793-2010.

Q: What desk-level illuminance can a 36W classroom light achieve?

Under the standard 9+3 layout for ordinary classrooms, the maintained average illuminance (at desk level) is ≥400Lx, luminaire efficacy is ≥85Lm/W, and rated luminous flux is ≥2800Lm.

Q: What are the lifespan and warranty of this classroom light?

The overall luminaire lifespan is ≥30,000 hours, with lumen maintenance ≥97% at 6,000 hours. The warranty period is 5 years. It features an isolated constant-current driver and a double-layer ring-shaped metal electroplated housing.

2025-07-21 · Product

Inquire about this product Product data download Start with this one Watch the product video to learn more details Basic parameters Model: HMB-X03-36 Product introduction: This product is a ceiling light produced according to ETL certification standards, with an attractive design. The whole lamp adopts a double-layer ring shape, made of metal material.

Quick Answer

The HUMUBAO HMB-X03-36 ceiling light is manufactured to ETL certification standards and complies with GB 7793-2010 and other standards, with a color rendering index of ≥92, a color temperature of 5000K±100K, blue light hazard Rg0, and a unified glare rating UGR<16 for classroom lighting.

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Product documentation download

Start with this unit. Watch the product video to learn more details.

Basic parameters

Model: HMB-X03-36

Product introduction: This product is a ceiling light manufactured according to ETL certification standards, with an attractive design. The entire lamp features a double-layer ring design, metal material, and electroplated surface treatment. The LED light source uses the HUMUBAO third-generation full-spectrum chip, an integrated lens light source, with advantages such as good heat dissipation, low lumen depreciation over long-term use, and long service life. This product's light source integrates two color temperatures and five-level manual DIP switch dimming for color change, and supports TRIAC dimming.

Executive standards:

National standard GB 50034-2013 "Standard for Lighting Design of Buildings",

GB 7793-2010 "Hygienic Standard for Day Lighting and Artificial Lighting for Middle and Elementary School"

GB/T 5700-2008 "Measurement Methods for Lighting"

DB44/T 2335-2021 "Technical Specifications for Lighting in Primary and Secondary Schools"

IEEE Std 1789-2015 "IEEE Recommended Practices for Modulating Current in High-Brightness

LEDs for Mitigating Health Risks to Viewers"

Photometric parameters

Rated voltage:	AC110-240V/50-60Hz	Color rendering index:	≥92
Rated power:	36W	Special color rendering index R9	≥60
Power factor:	≥0.95	Rated luminous flux	≥2800Lm
6000-hour lumen maintenance	≥97%	Luminaire efficacy:	≥85Lm/W
IP protection rating	IP40	Light source specifications	2835 0.5WSTM
Blue light hazard level	Rg0 (Exempt group)	Light source brand	Shenzhen Refond Optoelectronics
Flicker	No hazard, no significant impact	Light source power	192*0.5W module
Unified Glare Rating UGR for classroom lighting	<16 (measured for classroom lighting)	Color temperature:	5000K±100K
Power supply:	Isolated constant current power supply	Color tolerance	≤5
Maintained average illuminance (desktop)	(Standard classroom 9+3 solution) ≥400Lx	Color fidelity	≥90

Lamp lifespan:	≥30000 hours	Packaging method:	2-pack
		Packaging specifications:
Warranty period	5 years	Electric shock protection class:	Class II
Installation method:	Ceiling-mounted	Suspension rod diameter
Certification standards	ETL certification,

Frequently Asked Questions

What color rendering index is sufficient for classroom lights?