Designed to meet the requirements of both professional and private drivers, the H4 bulb produces a powerful and homogeneous beam of light that improves visibility of the road, traffic signs and obstacles, while limiting glare for other road users when properly adjusted.<\/p>\n
Thanks to halogen technology, the filament operates at a high temperature, providing stable light and excellent light output. This technology also ensures instant start-up, a long lifespan, and compatibility with most H4 bulb fittings.<\/p>\n
When the bulb begins to lose its effectiveness or reaches the end of its lifespan, several symptoms may appear:<\/p>\n
- \n
- Lower lighting<\/li>\n
- Reduced light range<\/li>\n
- Reduced nighttime visibility<\/li>\n
- Difficulty driving in the rain or fog<\/li>\n
- Burnt-out lightbulb<\/li>\n
- Uneven lighting<\/li>\n
- Increased risk of accident<\/li>\n
- Non-compliance during the technical inspection<\/li>\n<\/ul>\n
Replacing a H4 bulb<\/strong> using worn-out parts allows for immediate restoration of the vehicle's lighting quality while improving driving safety.<\/p>\n
As part of preventive maintenance, it is recommended to replace both front bulbs simultaneously in order to maintain uniform lighting.<\/p>\n
\nA technical design adapted to intensive use<\/h1>\n
Modern H4 bulbs are developed to offer an excellent compromise between lighting power, lifespan and reliability.<\/p>\n
Dual filament integrated<\/h2>\n
A single bulb provides both dipped and main beam functions, simplifying installation and ensuring efficient lighting.<\/p>\n
High-performance halogen technology<\/h2>\n
Halogen gas improves light output and extends filament life compared to conventional incandescent bulbs.<\/p>\n
Precise beam of light<\/h2>\n
The filament design allows for excellent light distribution for optimal visibility without dazzling other drivers when the headlight is properly adjusted.<\/p>\n
OEM compliant installation<\/h2>\n
Thanks to his audacity P43t<\/strong>, The H4 bulb can be easily installed on compatible vehicles without modification.<\/p>\n
Vibration resistance<\/h2>\n
Designed to withstand the vibrations generated by road and utility vehicles, it guarantees reliable operation even under intensive use.<\/p>\n
Excellent lifespan<\/h2>\n
The high-quality materials used for the filament and glass allow for durable and consistent use.<\/p>\n
\nProfessional applications<\/h1>\n
The H4 bulb is perfectly suited for:<\/p>\n
- \n
- Private cars<\/li>\n
- Utility vehicles<\/li>\n
- Light trucks<\/li>\n
- Some heavy goods vehicles (24V version)<\/li>\n
- Motorcycles<\/li>\n
- Pickup<\/li>\n
- Agricultural vehicles<\/li>\n
- Construction equipment<\/li>\n
- Off-road vehicles<\/li>\n
- Professional Fleets<\/li>\n<\/ul>\n
\nOptimized benefits for your vehicle<\/h1>\n
\n\n\n\n
\n Technical Advantage<\/strong><\/th>\n Direct Impact on Operations<\/strong><\/th>\n<\/tr>\n<\/thead>\n\n \n Double filament<\/td>\n Low beam and high beam headlights in a single bulb<\/td>\n<\/tr>\n \n Powerful lighting<\/td>\n Improved nighttime visibility<\/td>\n<\/tr>\n \n Homogeneous beam<\/td>\n Safer driving<\/td>\n<\/tr>\n \n OEM Installation<\/td>\n Quick and easy replacement<\/td>\n<\/tr>\n \n Vibration resistance<\/td>\n Reliability in heavy use<\/td>\n<\/tr>\n \n Instant ignition<\/td>\n Immediate security<\/td>\n<\/tr>\n \n Long lifespan<\/td>\n Reduction in replacements<\/td>\n<\/tr>\n \n Halogen technology<\/td>\n Excellent value for money<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
\nTechnical specifications and compatibility<\/h1>\n
\n\n\n\n
\n Attribute<\/strong><\/th>\n Specification<\/strong><\/th>\n<\/tr>\n<\/thead>\n\n \n Light bulb type<\/td>\n H4 halogen<\/td>\n<\/tr>\n \n Technology<\/td>\n Halogen<\/td>\n<\/tr>\n \n Function<\/td>\n Low beam headlights \/ High beam headlights<\/td>\n<\/tr>\n \n Standard voltage<\/td>\n 12V<\/td>\n<\/tr>\n \n Standard power<\/td>\n 60\/55 W<\/td>\n<\/tr>\n \n Heavy-duty version<\/td>\n 24 V \u2013 75\/70 W<\/td>\n<\/tr>\n \n Base type<\/td>\n P43t<\/td>\n<\/tr>\n \n Facility<\/td>\n Compliant with manufacturer specifications<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
\nA sustainable solution to reduce operating costs<\/h1>\n
A high-performance H4 bulb improves safety while reducing the costs associated with frequent replacements. Effective lighting also helps limit driver eye strain during nighttime journeys and improves obstacle detection.<\/p>\n
The H4 bulb allows, among other things:<\/p>\n
- \n
- Improve nighttime visibility<\/li>\n
- Strengthening driving safety<\/li>\n
- Reduce eye strain<\/li>\n
- Optimize visibility in the rain<\/li>\n
- Facilitating long-distance journeys<\/li>\n
- Reduce maintenance costs<\/li>\n
- Ensuring reliable lighting on a daily basis<\/li>\n<\/ul>\n
This solution helps improve driver safety while ensuring economical and sustainable maintenance.<\/p>\n
\nWhy choose an H4 headlight bulb from Kasparts?<\/h1>\n
At Kasparts, we offer H4 bulbs that meet the requirements of both professionals and individuals. Selected for their manufacturing quality, luminous power, and reliability, they ensure replacements that conform to original specifications and long-lasting performance.<\/p>\n
Thanks to their excellent lighting quality, robustness and compatibility with many vehicles, they represent an ideal choice to ensure safe driving day and night.<\/p>\n
\nStrengths<\/h1>\n
- \n
- Professional quality<\/li>\n
- Double filament (crossover and road)<\/li>\n
- Powerful lighting<\/li>\n
- Homogeneous light beam<\/li>\n
- Halogen technology<\/li>\n
- OEM compliant installation<\/li>\n
- Vibration resistance<\/li>\n
- Long lifespan<\/li>\n
- Compatible with many vehicles<\/li>\n
- Excellent value for money<\/li>\n<\/ul>\n
\nCertifications and Quality<\/h1>\n
- \n
- Compliant with international automotive lighting standards<\/li>\n
- ECE approval (depending on the model)<\/li>\n
- Rigorous quality control<\/li>\n
- Manufactured according to high technical requirements<\/li>\n
- Suitable for intensive automotive and professional applications.<\/li>\n<\/ul>\n
\nTarget audience<\/h1>\n
- \n
- Owners of private cars<\/li>\n
- Commercial vehicle drivers<\/li>\n
- Fleet managers<\/li>\n
- Transportation companies<\/li>\n
- Auto mechanics<\/li>\n
- Repair shops<\/li>\n
- Motorcyclists<\/li>\n
- Construction professionals<\/li>\n
- Auto parts retailers<\/li>\n
- Automotive maintenance professionals<\/li>\n<\/ul>\n
![\"\"](\"https:\/\/kasparts.com\/wp-content\/uploads\/2026\/07\/Ampoule-Phare-H4-358x300.png\")
<\/p>","protected":false},"excerpt":{"rendered":"Technical specifications and compatibility<\/h1>\n
\n\n\n\n
\n Attribute<\/strong><\/th>\n Specification<\/strong><\/th>\n<\/tr>\n<\/thead>\n\n \n Light bulb type<\/td>\n H4 halogen<\/td>\n<\/tr>\n \n Technology<\/td>\n Halogen<\/td>\n<\/tr>\n \n Function<\/td>\n Low beam headlights \/ High beam headlights<\/td>\n<\/tr>\n \n Standard voltage<\/td>\n 12V<\/td>\n<\/tr>\n \n Standard power<\/td>\n 60\/55 W<\/td>\n<\/tr>\n \n Heavy-duty version<\/td>\n 24 V \u2013 75\/70 W<\/td>\n<\/tr>\n \n Base type<\/td>\n P43t<\/td>\n<\/tr>\n \n Facility<\/td>\n Compliant with manufacturer specifications<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>","protected":false},"featured_media":21176,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[253],"product_tag":[],"class_list":["post-21423","product","type-product","status-publish","has-post-thumbnail","product_cat-eclairage","first","instock","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/kasparts.com\/en\/wp-json\/wp\/v2\/product\/21423","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kasparts.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/kasparts.com\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/kasparts.com\/en\/wp-json\/wp\/v2\/comments?post=21423"}],"version-history":[{"count":1,"href":"https:\/\/kasparts.com\/en\/wp-json\/wp\/v2\/product\/21423\/revisions"}],"predecessor-version":[{"id":21424,"href":"https:\/\/kasparts.com\/en\/wp-json\/wp\/v2\/product\/21423\/revisions\/21424"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kasparts.com\/en\/wp-json\/wp\/v2\/media\/21176"}],"wp:attachment":[{"href":"https:\/\/kasparts.com\/en\/wp-json\/wp\/v2\/media?parent=21423"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/kasparts.com\/en\/wp-json\/wp\/v2\/product_brand?post=21423"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/kasparts.com\/en\/wp-json\/wp\/v2\/product_cat?post=21423"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/kasparts.com\/en\/wp-json\/wp\/v2\/product_tag?post=21423"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}