LED full-spectrum writing board light

Q: Which model of classroom blackboard light can prevent glare?

Choose the HMB-H02-36. It is an integrated grille anti-glare polarized lens blackboard light with an anti-glare baffle in the line of sight. In actual classroom lighting measurements, the unified glare rating is UGR<16 and the blue light hazard rating is Rg0, which can prevent teachers and students from being disturbed by glare.

Q: What are the color rendering index and color temperature of this blackboard light?

The color rendering index is ≥92, the special color rendering index R9 is ≥60, the color temperature is 5000K±100K, the color tolerance is ≤5, the color fidelity is ≥90, the rated luminous flux is ≥2800Lm, and the luminaire efficacy is ≥85Lm/W. It is suitable for classroom writing board lighting.

Q: How many lights are enough for an ordinary classroom?

For a standard classroom installation of ≤64M², use 9 classroom lights and 3 blackboard lights. The maintained average illuminance on desk surfaces is ≥400Lx, illuminance uniformity is ≥0.7, and the lighting power density of the standard classroom (excluding blackboard lights) is ≤7W/M².

Q: Which national standards does this blackboard light comply with?

It complies with standards such as GB 7793-2010, GB 40070-2021, GB 50034-2013, GB/T 36876-2018, and DB44/T 2335-2021, and has passed CCC certification. Its blue light hazard rating is Rg0, with no harmful flicker.

Q: What is the lifespan of the blackboard light, and how many years is the warranty?

The overall lamp lifespan is ≥30,000 hours, with a luminous flux maintenance rate of ≥97% at 6,000 hours, ensuring minimal light decay over long-term use. The warranty period is 5 years. It features an isolated constant-current power supply, Class II protection against electric shock, and a rod-hung installation method with a Ø10MM hanging rod diameter.

2025-08-05 · Product

Inquire about this product Product information download led classroom light-.pdf Start with this one Watch the product video to learn more details Basic parameters Model: HMB-H02-36 Product introduction: Integrated grille anti-glare polarized lens blackboard light, uniform light output

Quick Answer

The HUMUBAO LED full-spectrum writing board light, model HMB-H02-36, has a rated power of 36W, a color rendering index of ≥92, a color temperature of 5000K±100K, a unified glare rating of UGR<16, and a blue light hazard rating of Rg0. It complies with standards such as GB 7793-2010 and GB 40070-2021, and is suitable for 9+3 lighting schemes in ordinary classrooms.

Basic Parameters

Model: HMB-H02-36 Product Introduction: Integrated grille anti-glare polarized lens blackboard light, uniform light output, precise light output angle. The entire lamp is formed in one piece using extruded aluminum profiles, with a sandblasted oxidation finish on the surface. Both end caps are PC injection molded, and the polarized lens and light source module are embedded in the guide grooves of the lamp body. It has advantages such as sturdy structure, good heat dissipation for the light source, low lumen depreciation over long-term use, and long service life. An anti-glare baffle is provided in the line of sight direction, avoiding glare interference for teachers and students during use. The installation angle of the entire lamp can be flexibly adjusted, and grooves are provided to allow adjustment of the installation position to both sides.

Applicable 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 40070-2021 "Hygienic Requirements for Myopia Prevention and Control of Learning Products for Children and Adolescents"

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

GB 50034-2013 "Standard for Lighting Design of Buildings" DB44/T 2335-2021 "Technical Specification for Classroom Lighting in Primary and Secondary Schools" GB 7793-2010 "Hygienic Standard for Day Lighting and Artificial Lighting for Middle and Elementary School" GB/T 36876-2018 "Hygienic Requirements for Lighting Design and Installation in Ordinary Classrooms of Primary and Secondary Schools" GB/T 31831-2015 "Technical Requirements for LED Indoor Lighting Applications" GB 50099-2011 "Code for Design of Primary and Secondary Schools" IEEE Std 1789-2015 "IEEE Recommended Practices for Modulating Current in High-Brightness LEDs for Mitigating Health Risks to Viewers"

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

Photoelectric ParametersRated Voltage: AC220-240V/50-60Hz

Color Rendering Index: ≥92 Rated Power: 36W

Special Color Rendering Index R9≥60 Power Factor: ≥0.95 Rated

Constant luminous flux ≥2800Lm, 6000-hour lumen maintenance ≥97%, luminaire efficacy: ≥85Lm/W, IP protection rating IP40, light source specification 2835 0.5W, STM blue light hazard rating Rg0 (exempt group), light source brand Shenzhen Refond Optoelectronics, flicker harmless, no significant effect, light source power 192*0.5W module, classroom lighting unified glare rating UGR<16 (measured in 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, illuminance uniformity (desktop) ≥0.7, standard classroom lighting power density (excluding blackboard light) ≤7W/M2, overall luminaire lifespan: ≥30000 hours, packaging method: 6-pack, standard classroom installation solution (≤64M2) 9 classroom lights + 3 blackboard lights

Packaging specifications:125*64.5*35CM

Warranty period 5 years, electric shock protection class: Class II

Installation method: rod suspension, rod diameter Ø10MM

Certification standards: CCC certification, GB40070-2021 "Hygienic Requirements for Myopia Prevention and Control of School Supplies for Children and Adolescents" You may also be interested in these products

Frequently Asked Questions

Which model of classroom blackboard light can prevent glare?

Choose the HMB-H02-36. It is an integrated grille anti-glare polarized lens blackboard light with an anti-glare baffle in the line of sight. In actual classroom lighting measurements, the unified glare rating is UGR<16 and the blue light hazard rating is Rg0, which can prevent teachers and students from being disturbed by glare.

What are the color rendering index and color temperature of this blackboard light?

The color rendering index is ≥92, the special color rendering index R9 is ≥60, the color temperature is 5000K±100K, the color tolerance is ≤5, the color fidelity is ≥90, the rated luminous flux is ≥2800Lm, and the luminaire efficacy is ≥85Lm/W. It is suitable for classroom writing board lighting.

How many lights are enough for an ordinary classroom?

For a standard classroom installation of ≤64M², use 9 classroom lights and 3 blackboard lights. The maintained average illuminance on desk surfaces is ≥400Lx, illuminance uniformity is ≥0.7, and the lighting power density of the standard classroom (excluding blackboard lights) is ≤7W/M².

Which national standards does this blackboard light comply with?

It complies with standards such as GB 7793-2010, GB 40070-2021, GB 50034-2013, GB/T 36876-2018, and DB44/T 2335-2021, and has passed CCC certification. Its blue light hazard rating is Rg0, with no harmful flicker.

What is the lifespan of the blackboard light, and how many years is the warranty?

The overall lamp lifespan is ≥30,000 hours, with a luminous flux maintenance rate of ≥97% at 6,000 hours, ensuring minimal light decay over long-term use. The warranty period is 5 years. It features an isolated constant-current power supply, Class II protection against electric shock, and a rod-hung installation method with a Ø10MM hanging rod diameter.