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DIY LED U-HOME High CRI RA 95+ High Power 300W COB LED Daylight 5600K DC47.8-56.2V 5750mA 30000lm for DIY Home Cinema Projector

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DIY LED U-Home

DIY LED U-HOME High CRI RA 95+ High Power 300W COB LED Daylight 5600K DC47.8-56.2V 5750mA 30000lm for DIY Home Cinema Projector

$134.99 $149.99

153 sold

Wattage

300W

Emitting Color

Daylight White

Qty 1781 in stock

Product Description

Brand Name: DIY LED U-Home

Certification: CE

Origin: CN(Origin)

Usage: HOLIDAY

Item Type: Spotlight

Warranty: 1 Year

Body Material: Copper

Is Dimmable: No

Light Source: LED Bulbs

Power Tolerance: 3%

Model Number: 300W-COB LED

Finish: Polished Chrome

Application: DIY Flashlight or Home Cinema Projector

Features: Luminous Flux (LM):30000-35000 LM

Color: Daylight White 5600K

Working Voltage: DC47.8-56.2V

Working Current: 5750mA

CRI RA Value: 97

Please take a look at this Youtube DIY Video that teach you how to use this step-down module to DIY Building a TRUE 4k home cinema projector (it’s awesome)

it's very useful and funny if you DIY by yourself.(Video from Web Celebrity “DIY Perks” at Youtube website)

DIY 4K Home Cinema Projector: https://www.youtube.com/watch?v=YfvTjQ9MCwY

The cost performance of our this 300W COB LED is better than YUJI COB LED. YUJI COB is too expensive

What is CRI:
Color Rendering Index, it describes how a light source makes the color of an object appear to human eyes,and how well subtle variations in color shades are revealed. The CRI is a scale from 0 to 100 percent indicating how accurate a "given" light source is at rendering color when compared to a "reference" light source.

The higher the CRI, the better the color rendering ability. Light sources with a CRI of 80 to 90 are considered good at color rendering. Light sources with a CRI of 90 or higher are excellent at color rendering and should be used for tasks requiring the most accurate color discrimination.

Parameters of 300W COB LED:

1: Brand of LED Chip: CITIZEN

2: Color Temperature: 5600K

3: Voltage (V): DC47.8-56.2 V

4: Current (mA): 5750mA

5: Luminous Flux (LM): 30000-35000 LM

6: CRI Ra 97

7: Material: Copper Brackets

8: Working Temperature: -30-60℃

Note: It will work more than 30000 hours if the working temperature is less than 60 Degree Celsius. So, they need to work wih heatsinks and Thermal Silica for cooling and heat dissipation, otherwise the COB will be burn broken due to too much hot.

Package included: 1 x 300W Daylight White COB LED

class SpzSmartBlockComponent extends SPZ.BaseElement { constructor(element) { super(element); this.templates_ = null; this.container_ = null; this.i18n_ = {}; this.config_ = {}; this.show_type_ = 3; this.product_resource_id_ = ''; this.collection_resource_id_ = ''; this.cart_items_ = []; this.customer_id_ = ''; this.order_id_ = ''; } static deferredMount() { return false; } isLayoutSupported(layout) { return layout == SPZCore.Layout.CONTAINER; } buildCallback() { const template_type = window.SHOPLAZZA.meta.page.template_type; if (template_type === 1) { this.show_type_ = 3; this.product_resource_id_ = window.SHOPLAZZA.meta.page.resource_id; } else if (template_type === 2) { this.show_type_ = 4; this.collection_resource_id_ = window.SHOPLAZZA.meta.page.resource_id; } else if (template_type === 15){ this.show_type_ = 5; } else if (template_type === 13){ this.show_type_ = 6; } else if (template_type === 20){ this.show_type_ = 7; this.customer_id_ = window.SHOPLAZZA.customer.customer_id; } else if (template_type === 35){ this.show_type_ = 8; this.order_id_ = window.location.pathname.split('/').pop(); } this.templates_ = SPZServices.templatesForDoc(this.element); this.setAction_(); } mountCallback() { console.log('smart mounted'); const that = this; const themeName = window.SHOPLAZZA.theme.merchant_theme_name; const isGeek = /Geek/.test(themeName); this.fetchRules().then((res) => { if (res && res.rules && res.rules.length) { const blockEl = document.getElementById('smart_recommend_block'); SPZ.whenApiDefined(blockEl).then((api) => { api.render({data: res}, true).then(() => { if (isGeek && that.show_type_ === 6) { blockEl.querySelector('.plugin_container_wrpper').style.padding = '30px 0'; } const recommendStyle = document.createElement('style'); recommendStyle.innerHTML = ` .plugin__recommend_container,.app-recommend-card { display: none !important; } `; document.head.appendChild(recommendStyle); const fetchList = []; res.rules.forEach((rule) => { fetchList.push(this.fetchRuleProductList(rule.id)); }); const fetchAll = Promise.all(fetchList); fetchAll.then((p_res) => { res.rules.forEach((rule, index) => { rule.products = p_res[index] && p_res[index].products; const ruleEl = document.getElementById('smart_recommend_rule_' + rule.id); SPZ.whenApiDefined(ruleEl).then((api) => { api.render({data: rule}, true).then(() => { that.impressListen(`#smart_recommend_rule_ul_${rule.id}`, function(){ that.trackRuleImpress(rule); }); const btnElList = document.querySelectorAll(`#smart_recommend_rule_ul_${rule.id} button`); btnElList.forEach((btnEl) => { if (btnEl && rule.config && rule.config.quick_shop_button_bg_color && rule.config.quick_shop_button_text_color) { btnEl.style.backgroundColor = rule.config.quick_shop_button_bg_color; btnEl.style.color = rule.config.quick_shop_button_text_color; } }) }); }); }); }); }) }) } else { if (window.top !== window.self) { const template_type = window.SHOPLAZZA.meta.page.template_type; const holderEl = document.getElementById('smart_recommend_preview_no_data_placeholder'); SPZ.whenApiDefined(holderEl).then((api) => { api.render({data: { isCart: template_type === 13, isCollection: template_type === 2, isProduct: template_type === 1, isIndex: template_type === 15 }}, true); }); } } }); } setAction_() { this.registerAction('quickShop', (data) => { const that = this; const product_id = data.args.product_id; const productIndex = data.args.productIndex; const rule_id = data.args.rule_id; const ssp = data.args.ssp; const scm = data.args.scm; const cfb = data.args.cfb; const ifb = data.args.ifb; const modalRender = document.getElementById('smart_recommend_product_modal_render'); if (product_id) { this.fetchProductData(product_id).then((res) => { const product = res.products && res.products.length && res.products[0] || {}; product.cfb = cfb; product.ifb = ifb; SPZ.whenApiDefined(modalRender).then((api) => { api.render({product: product, productIndex: productIndex, rule_id: rule_id, ssp: ssp, scm: scm, show_type: that.show_type_}, true).then(() => { const modalEl = document.getElementById('smart_recommend_product_modal'); SPZ.whenApiDefined(modalEl).then((modal) => { that.impressListen('#smart_recommend_product_modal', function(){ that.trackQuickShop({ rule_id: rule_id, product_id: product_id }); }); modal.open(); }); const formEl = document.getElementById('smart_recommend_product_form'); SPZ.whenApiDefined(formEl).then((form) => { form.setProduct(product); }); const variantEl = document.getElementById('smart_recommend_product_variants'); SPZ.whenApiDefined(variantEl).then((variant) => { variant.handleRender(product); }); }); }) }); } }); this.registerAction('handleScroll', (data) => { this.directTo(data.args.rule_id, data.args.direction); }); this.registerAction('handleProductChange', (data) => { const variant = data.args.data.variant; const product = data.args.data.product; const imageRenderEl = document.getElementById('smart_recommend_product_image'); SPZ.whenApiDefined(imageRenderEl).then((api) => { api.render({ variant: variant, product: product }, true); }); }); this.registerAction('handleAtcSuccess', (detail) => { const data = detail.args; data.data.product = data.data.product || {}; data.data.variant = data.data.variant || {}; const product_id = data.data.product.id; const product_title = data.data.product.title; const variant_id = data.data.variant.id; const price = data.data.variant.price; const rule_id = data.rule_id; const aid = `smart_recommend.${this.show_type_}.${rule_id}`; const ifb = data.data.product.ifb; const cfb = data.data.product.cfb; const ssp = data.ssp; const scm = data.scm; const spm = `smart_recommend_${this.show_type_}.${data.spmIndex}`; const params = { id: product_id, product_id: product_id, number: 1, name: product_title, variant_id: variant_id, childrenId: variant_id, item_price: price, source: 'add_to_cart', _extra: { aid: aid, ifb: ifb, cfb: cfb, scm: scm, spm: `..${window.SHOPLAZZA.meta.page.template_name}.${spm}`, ssp: ssp, } }; this.tranckAddToCart(params); }); this.registerAction('addATCHook', (data) => { const params = data.args; const spm = `smart_recommend_${this.show_type_}.${params.spmIndex}`; this.myInterceptor_ = window.djInterceptors && window.djInterceptors.track.use({ event: 'dj.addToCart', params: { aid: `smart_recommend.${this.show_type_}.` + params.rule_id, ssp: params.ssp, scm: params.scm, cfb: params.cfb, spm: `..${window.SHOPLAZZA.meta.page.template_name}.${spm}`, }, once: true }); }); } tranckAddToCart(detail) { if (window.$) { window.$(document.body).trigger('dj.addToCart', detail); } } fetchRules() { const payload = { show_type: this.show_type_, }; let that = this; if (this.show_type_ === 6) { let line_items = []; return this.fetchCart().then((res) => { if (res && res.cart && res.cart.line_items) { line_items = res.cart.line_items.map((item) => { return { product_id: item.product_id, variant_id: item.variant_id, quantity: item.quantity, price: item.price } }); } payload.line_items = line_items; that.cart_items_ = line_items; return that.fetchRulesRequest(payload); }); } else { if (this.show_type_ === 3) { payload.line_items = [{ product_id: this.product_resource_id_ }]; } else if (this.show_type_ === 4) { payload.collection_id = this.collection_resource_id_; } else if (this.show_type_ === 7) { payload.customer_id = this.customer_id_; } else if (this.show_type_ === 8) { payload.order_id = this.order_id_; } return this.fetchRulesRequest(payload); } } fetchRulesRequest(payload) { return fetch(window.SHOPLAZZA.routes.root + "/api/possum/recommend_query", { method: "POST", headers: { "Content-Type": "application/json" }, body: JSON.stringify(payload) }).then(function(res){ if(res.ok){ return res.json(); } }); } fetchCart() { return fetch(`/api/cart/cart-select?r=${Math.random().toString(36).slice(-4)}`) .then((res) => { if (res.ok) { return res.json(); } }); } fetchRuleProductList(rule_id) { const payload = { page: 1, limit: 100, fields: ["title", "url", "image", "min_price_variant.price", "min_price_variant.compare_at_price"], rule_id: rule_id, }; if (this.show_type_ === 3) { payload.line_items = [{ product_id: this.product_resource_id_ }]; } else if (this.show_type_ === 4) { payload.collection_id = this.collection_resource_id_; } else if (this.show_type_ === 6) { payload.line_items = this.cart_items_; } else if (this.show_type_ === 7) { payload.customer_id = this.customer_id_; } else if (this.show_type_ === 8) { payload.order_id = this.order_id_; } return fetch(window.SHOPLAZZA.routes.root + "/api/possum/recommend_products", { method: "POST", headers: { "Content-Type": "application/json" }, body: JSON.stringify(payload) }).then(function(res){ if(res.ok){ return res.json(); } }).catch(function(err){ console.log(err); }); } fetchProductData(product_id) { return fetch(window.SHOPLAZZA.routes.root + "/api/possum/products", { method: "POST", headers: { "Content-Type": "application/json" }, body: JSON.stringify({ product_ids: [product_id], fields: [ "images", "options", "min_price_variant", "variants"] }) }).then(function(res){ if(res.ok){ return res.json(); } }).catch(function(err){ console.log(err); const loadingEl = document.getElementById('smart_recommend_loading'); if (loadingEl) { loadingEl.style.display = 'none'; } }); } getStyle(ele, style) { if (!ele) return; if (window.getComputedStyle) { return window.getComputedStyle(ele)[style]; } return ele.currentStyle[style]; } directTo(id, direction) { const scrollElement = document.getElementById(`smart_recommend_rule_ul_${id}`); const blockWidth = parseInt(this.getStyle(scrollElement, 'width')); const scrollLength = (blockWidth * 0.19 - 12) * 5; const scrollPoint = scrollElement.scrollWidth - scrollElement.clientWidth; if (!scrollElement) return; if (direction === 'left') { if (document.dir === 'rtl') { scrollElement.scrollTo({ left: Math.abs(scrollElement.scrollLeft) >= scrollPoint - 100 ? 0 : scrollElement.scrollLeft - scrollLength, behavior: 'smooth' }); return; } scrollElement.scrollTo({ left: Math.max(scrollElement.scrollLeft - scrollLength, 0), behavior: 'smooth' }); } else { if (document.dir === 'rtl') { scrollElement.scrollTo({ left: Math.abs(scrollElement.scrollLeft) >= scrollPoint + 100 ? 0 : scrollElement.scrollLeft + scrollLength, behavior: 'smooth' }); return; } scrollElement.scrollTo({ left: scrollElement.scrollLeft >= scrollPoint - 100 ? 0 : scrollElement.scrollLeft + scrollLength, behavior: 'smooth' }); } } trackRuleImpress(rule) { if (window.sa && window.sa.track) { window.sa.track("plugin_common", { plugin_name: "upsell", event_type: "impressions", rule_id: rule.id, ssp: rule.ssp, scm: rule.scm, show_type: this.show_type_, support_app_block: window.SHOPLAZZA.theme.support_app_block }); window.sa.track("module_impressions", { aid: `smart_recommend.${this.show_type_}.${rule.id}`, support_app_block: window.SHOPLAZZA.theme.support_app_block }); } } trackQuickShop(data) { window.sa && sa.track && sa.track("plugin_common", { plugin_name: "upsell", event_type: "quick_shop", rule_id: data.rule_id, product_id: data.product_id, show_type: this.show_type_, }); } impressListen(selector, cb) { const el = document.querySelector(selector); const onImpress = (e) => { if (e) { e.stopPropagation(); } cb(); }; if (el && !el.getAttribute('imprsd')) { el.addEventListener('impress', onImpress) } else if (el) { onImpress(); } } } SPZ.defineElement('spz-custom-smart-block', SpzSmartBlockComponent);

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DIY LED U-HOME High CRI RA 95+ High Power 300W COB LED Daylight 5600K DC47.8-56.2V 5750mA 30000lm for DIY Home Cinema Projector

it's very useful and funny if you DIY by yourself.(Video from Web Celebrity “DIY Perks” at Youtube website)