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Amazon [amazon.com] has Energizer 1000 High Lumen Hybrid Rechargeable LED Headlamp on sale for $ 16.58 when you ‘clip’ the 50% off coupon on the product page. Shipping is free.

Product Details:[list][*]Can be powered by rechargeable lithium ion batteries or CR123 batteries[*]Powerful beam casts 400 lumens on High and 1000 lumens on Turbo[*]This battery powered light is IPX4 water-resistant and impact-resistant up to 1 meter for dependable performance